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spm15 series single output potted metal package isolated 15-watt dc-dc converters mdc_spm15.c01 page 1 of 36 www.murata-ps.com www.murata-ps.com/support for full details go to www.murata-ps.com/rohs $ typical unit product overview the spm15 series isolated dc-dc converters represent the next generation in industrial potted module technology. featuring a full 15-watt output in one square inch of board area, the spm15 series isolated dc-dc converter family offers ef? cient regulated dc power for printed circuit board mounting. the 1? x 1? x 0.41? (25.4 x 25.4 x 10.41 mm) converter accepts a wide range of input volt- ages, ideal for industrial applications. intended target markets include transportation, medical systems, electronic test equipment, indus- trial processing equipment, industrial applications where power modules must meet rugged envi- ronmental requirements, high power density, and where isolated output voltages are required. these converters offer a feature/option set including: through-hole mounting, positive or negative logic (remote on/off), over-current & over-temperature protection, under-voltage lockout. the input voltage range covers the standard industrial requirements with a regulated output voltage and power rating up to 15w. modules provide voltage isolation (basic insulation) from input to output of up to 1600v. the operating ambient temperature range is -40c to +85c.the module delivers full output power to +70c with no air? ow. these parts are ideal for applications that do not require any heat sinking or forced air cooling. features ? ? wide range input voltages 9-36 and 18-75 vdc ? ? 1? x 1? x 0.41? dimensions. ? ? adjustable vout (+10% to -10%) ? ? high ef? ciency ? ? positive & negative logic, remote on/off control option ? ? monotonic startup ? ? continuous short circuit protection ? ? over-temperature protection ? ? over-voltage protection ? ? low output ripple and noise ? ? strong thermal derating characteristics ? ? operational temperature range C40c to +85c ? ? 1600v i/o isolation ? ? packaged in a ? ve-sided emi shielding metal package with non-conductive base ? ? certi? ed to ul 60950-1, can/csa-c22.2 no. 60950-1, iec60950-1, safety approvals, 2nd edition, with am1
spm15 series single output potted metal package isolated 15-watt dc-dc converters mdc_spm15.c01 page 2 of 36 www.murata-ps.com/support part number structure performance specifications summary and ordering guide ? ? root models ? output input ef ciency (%) dimensions v out (v) i out (a, max) total power (w) r/n (mvp-p) regulation (max.) v in nom. (v) range (v) i in , min. load (ma) i in , full load (a) typ. ? max. line load min. typ. case (inches) case (mm) spm15-033-q12 3.3 4.5 14.85 60 100 0.25 0.25 24 9-36 100 0.695 86.5 89 1.0 x 1.0 x 0.41 25.4 x 25.4 x 10.41 spm15-033-q48 3.3 5 16.5 30 60 0.25 0.25 48 18-75 60 0.76 88.5 90 1.0 x 1.0 x 0.41 25.4 x 25.4 x 10.41 spm15-050-q12 5 3 15 40 70 0.05% 0.1% 24 9-36 105 0.71 85.5 88 1.0 x 1.0 x 0.41 25.4 x 25.4 x 10.41 spm15-050-q48 5 3 15 60 95 0.3% 0.2% 48 18-75 56 0.35 86.5 88.5 1.0 x 1.0 x 0.41 25.4 x 25.4 x 10.41 SPM15-120-Q12 12 1.3 15.6 60 120 0.05% 0.1% 24 9-36 110 0.77 82.3 84 1.0 x 1.0 x 0.41 25.4 x 25.4 x 10.41 spm15-120-q48 12 1.3 15.6 85 120 0.075% 0.05% 48 18-75 56 0.76 82 84 1.0 x 1.0 x 0.41 25.4 x 25.4 x 10.41 spm15-150-q12 15 1.1 16.5 130 175 0.1% 0.1% 24 9-36 130 0.82 82.5 84 1.0 x 1.0 x 0.41 25.4 x 25.4 x 10.41 spm15-150-q48 15 1.1 16.5 80 150 0.1% 0.075% 48 18-75 60 0.41 83 84.5 1.0 x 1.0 x 0.41 25.4 x 25.4 x 10.41 nominal output voltage in tenths of a volt (033 = 3.3v, 050 = 5v, 120 = 12v, 150 = 15v) single output potted module 15-watt series spm15 - q48 - 120 - c rohs-6 hazardous substance compliance (does not claim eu rohs exemption 7b, lead in solder) input voltage range q12 = 9-36 vdc q48 = 18-75vdc p on/off control logic blank = no on/off & no trim p = positive n = negative notes: ? please refer to the part number structure for additional options and complete order- ing part numbers. ? ripple and noise is shown at 20 mhz bandwidth. ? all speci? cations are at nominal line voltage and full load, +25 c. unless otherwise noted. see detailed speci? cations for full conditions. lx pin length option (through-hole only) blank = std. pin length 0.15? (3.8mm) l1 = 0.110? (2.79mm) ? ? special quantity order is required; samples available with standard pin length only. ? some model number combinations may not be available. see website or contact your local murata sales representative. input/output external test capacitors model input capacitor (electrolytic) output capacitor(s) spm15-033-q12 100 f 1f ceramic & 10f tantalum spm15-033-q48 4.7 f spm15-050-q12 100 f spm15-050-q48 4.7 f SPM15-120-Q12 100 f spm15-120-q48 4.7 f spm15-150-q12 100 f spm15-150-q48 4.7 f
spm15 series single output potted metal package isolated 15-watt dc-dc converters mdc_spm15.c01 page 3 of 36 www.murata-ps.com/support functional specifications ?model spm15-033-q12 absolute maximum ratings conditions ? minimum typical/nominal maximum units input voltage, continuous 0 36 vdc input voltage, transient 100 ms max. duration 50 vdc isolation voltage input to output 1600 vdc on/off remote control power on, referred to -vin 0 15 vdc output power 1.46 15.07 w output current current-limited, no damage, short-circuit protected 0.45 4.5 a storage temperature range vin = zero (no power) -55 125 ?c absolute maximums are stress ratings. exposure of devices to greater than any of these conditions may adversely affect long-ter m reliability. proper operation under conditions other than those listed in the performance/functional speci? cations table is not implied or recommended. input operating voltage range 9 24 36 vdc recommended external fuse fast blow 4 a start-up threshold rising input voltage 8 8.5 9 vdc undervoltage shutdown (50% load) falling input voltage 7.7 8.3 8.9 vdc internal filter type c input current full load input current vin = nominal 0.695 0.726 a low line input current vin = minimum 1.89 1.947 a inrush transient 0.05 a2-sec. short circuit input current 50 100 a minimum load input current iout = minimum, unit=on 100 125 ma shut-down input current (off, uv, ot) 12ma re ected (back) ripple current ? measured at input with speci? ed ? lter 30 50 ma, p-p general and safety ef ciency vin = 24v, full load 86.5 89 % vin = min., full load 86 87.3 % isolation isolation voltage input to output 1600 vdc isolation resistance 10 m isolation capacitance 1500 pf safety certi? ed to ul-60950-1, csa-c22.2 no. 60950- 1, iec/60950-1, 2nd edition, with am1 yes calculated mtbf per telcordia sr332, issue 1, class 3, ground ? xed, tambient = +25c 2 hours x 10 6 dynamic characteristics fixed switching frequency 325 350 375 khz startup time power on to vout regulated 50 ms startup time remote on to vout regulated 50 ms dynamic load response 50-75-50% load step, settling time to within 1% of vout 60 100 sec dynamic load peak deviation same as above 75 150 mv features and options remote on/off control ? ? suf x negative logic, on state on = ground pin -0.7 0.8 v negative logic, off state off = pin open 10 15 v control current open collector/drain 1 ma ? suf x positive logic, on state on = pin open 10 15 v positive logic, off state off = ground pin -0.7 0.7 v control current open collector/drain 1 ma
spm15 series single output potted metal package isolated 15-watt dc-dc converters mdc_spm15.c01 page 4 of 36 www.murata-ps.com/support output conditions ? ? minimum typical/nominal maximum units total output power 1.46 14.85 15.07 w voltage nominal output voltage no trim 3.251 3.3 3.35 vdc setting accuracy at 50% load, no trim -1.5 1.5 % of vnom output voltage range user-adjustable -10 10 % of vnom overvoltage protection via magnetic feedback 3.7 4.9 5.4 vdc current output current range 0.45 4.5 4.5 a current limit inception 98% of vnom., after warmup 4.9 7.5 8.5 a short circuit short circuit current hiccup technique, autorecovery within 1.25% of vout 0.321 a short circuit duration (remove short for recovery) output shorted to ground, no damage continuous short circuit protection method current limiting regulation line regulation vin = min. to max., vout = nom., iout = nom. 0.25 % of vout load regulation iout = min. to max., vin = 24v 0.25 % of vout ripple and noise 5 hz- 20 mhz bw, vin=24v 60 90 mv pk-pk maximum capacitive loading low esr 1000 f mechanical outline dimensions 1 x 1 x 0.41 inches (please refer to outline drawing) wxlxh 25.4 x 25.4 x 10.41 mm weight 0.69 ounces 19.56 grams through hole pin diameter 0.04 inches 1.016 mm through hole pin material copper alloy th pin plating metal and thickness nickel subplate 50 -inches gold overplate 5 -inches environmental operating ambient temperature range see derating -40 85 c operating case temperature range no derating -40 85 c case material tin plated steel with black powder coat storage temperature vin = zero (no power) -55 125 c thermal protection/shutdown measured in center 110 115 120 c electromagnetic interference external ? lter is required conducted, en55022/cispr22 b class rohs rating rohs-6 functional specifications (cont.) ?model spm15-033-q12 notes ? unless otherwise noted, all speci? cations are at nominal input voltage, nominal out- put voltage and full load. general conditions are +25? celsius ambient temperature, near sea level altitude, natural convection air? ow. all models are tested and speci? ed with external parallel 1 f and 10 f output capacitors. the external input capacitor is 100 f, electrolytic. all capacitors are low-esr types wired close to the converter. ? input (back) ripple current is tested and speci? ed over 5 hz to 20 mhz bandwidth. input ? ltering is cbus=220 f, cin=33 f and lbus=12 h. ? the remote on/off control is referred to -vin.
spm15 series single output potted metal package isolated 15-watt dc-dc converters mdc_spm15.c01 page 5 of 36 www.murata-ps.com/support typical performance data, spm15-033-q12 90 88 86 84 82 80 78 76 74 72 70 68 66 64 62 60 58 56 54 52 0.5 0.9 1.4 1.8 2.3 2.7 3.2 3.6 4.1 4.5 ef?iency (%) load current (amps) v in = 9v v in = 12v v in = 24v v in = 36v maximum current temperature derating at sea level vin = 9v, 12v, or 24v (air ? ow from pin j1 to pin j2 on pcb) maximum current temperature derating at sea level vin = 36v (air ? ow from pin j1 to pin j2 on pcb) 0 1 2 3 4 5 30 35 40 45 50 55 60 65 70 75 80 85 output current (amps) ambient temperature (?) natural convection 0 1 2 3 4 5 30 35 40 45 50 55 60 65 70 75 80 85 output current (amps) ambient temperature (?) .5 m/s (100 lfm) ef? ciency vs. line voltage and load current @ 25c power dissipation 0.50 0.75 1.00 1.25 1.50 1.75 2.00 2.25 2.50 0.5 0.9 1.4 1.8 2.3 2.7 3.2 3.6 4.1 4.5 v in = 9v v in = 12v v in = 24v v in = 36v output load curre nt (amps) power dissipation (watts)
spm15 series single output potted metal package isolated 15-watt dc-dc converters mdc_spm15.c01 page 6 of 36 www.murata-ps.com/support functional specifications ?model spm15-033-q48 absolute maximum ratings conditions ? minimum typical/nominal maximum units input voltage, continuous 0 80 vdc input voltage, transient 100 ms max. duration 100 vdc isolation voltage input to output 1600 vdc on/off remote control power on, referred to -vin 0 15 vdc output power 1.63 16.75 w output current current-limited, no damage, short-circuit protected 0.5 5 a storage temperature range vin = zero (no power) -55 125 ?c absolute maximums are stress ratings. exposure of devices to greater than any of these conditions may adversely affect long-ter m reliability. proper operation under conditions other than those listed in the performance/functional speci? cations table is not implied or recommended. input operating voltage range 18 48 75 vdc recommended external fuse fast blow 2 a start-up threshold rising input voltage 15.5 16.9 17.9 vdc undervoltage shutdown (50% load) falling input voltage 15 16 16.8 vdc internal filter type c input current full load input current vin = 24v 0.764 0.788 a full load input current vin = 48v 0.388 0.403 a low line input current vin = minimum 1.03 1.04 a inrush transient 0.05 a2-sec. short circuit input current 0.05 0.1 a minimum load input current iout = minimum, unit=on 60 90 ma shut-down input current (off, uv, ot) 12ma re ected (back) ripple current ? measured at input with speci? ed ? lter 30 ma, p-p general and safety ef ciency vin = 24v, full load 88.5 90 % vin = 48v, full load 86.5 88.5 % isolation isolation voltage input to output 1600 vdc isolation resistance 10 m isolation capacitance 1500 pf safety certi? ed to ul-60950-1, csa-c22.2 no. 60950- 1, iec/60950-1, 2nd edition, with am1 yes calculated mtbf per telcordia sr332, issue 1, class 3, ground ? xed, tambient = +25c 2,000,000 hours dynamic characteristics fixed switching frequency 325 350 375 khz startup time power on to vout regulated 10 50 ms startup time remote on to vout regulated 10 50 ms dynamic load response 50-75-50% load step, settling time to within 1% of vout 75 150 sec dynamic load peak deviation same as above 75 125 mv features and options remote on/off control ? ? suf x negative logic, on state on = ground pin -0.7 0.8 v negative logic, off state off = pin open 10 15 v control current open collector/drain 1 ma ? suf x positive logic, on state on = pin open 10 15 v positive logic, off state off = ground pin -0.7 0.7 v control current open collector/drain 1 ma
spm15 series single output potted metal package isolated 15-watt dc-dc converters mdc_spm15.c01 page 7 of 36 www.murata-ps.com/support output conditions ? ? minimum typical/nominal maximum units total output power 1.63 16.5 16.75 w voltage nominal output voltage no trim 3.2505 3.3 3.3495 vdc setting accuracy at 50% load, no trim 1.5 % of vnom output voltage range user-adjustable -10 10 % of vnom overvoltage protection via magnetic feedback 4 5 5.6 vdc current output current range 0.5 5 5 a current limit inception 98% of vnom., after warmup 5.9 7.3 8.4 a short circuit short circuit current hiccup technique, autorecovery within 1.25% of vout 0.3 a short circuit duration (remove short for recovery) output shorted to ground, no damage continuous short circuit protection method current limiting regulation line regulation vin = min. to max., vout = nom., iout = nom. 0.25 % of vout load regulation iout = min. to max., vin = 48v 0.25 % of vout ripple and noise 20 mhz bw, vin = 48v 30 60 mv pk-pk temperature coef cient at all outputs 0.02 % of vnom./c maximum capacitive loading low esr 5000 f mechanical outline dimensions 1 x 1 x 0.41 inches (please refer to outline drawing) wxlxh 25.4 x 25.4 x 10.41 mm weight 0.69 ounces 19.56 grams through hole pin diameter 0.04 inches 1.016 mm through hole pin material copper alloy th pin plating metal and thickness nickel subplate 50 -inches gold overplate 5 -inches environmental operating ambient temperature range see derating -40 85 c case material tin plated steel with black powder coat storage temperature vin = zero (no power) -55 125 c thermal protection/shutdown measured in center 120 130 140 c electromagnetic interference external ? lter is required conducted, en55022/cispr22 b class rohs rating rohs-6 functional specifications (cont.) ?model spm15-033-q48 notes ? unless otherwise noted, all speci? cations are at nominal input voltage, nominal out- put voltage and full load. general conditions are +25? celsius ambient temperature, near sea level altitude, natural convection air? ow. all models are tested and speci? ed with external parallel 1 f and 10 f output capacitors. the external input capacitor is 100 f, electrolytic. all capacitors are low-esr types wired close to the converter. ? input (back) ripple current is tested and speci? ed over 5 hz to 20 mhz bandwidth. input ? ltering is cbus=220 f, cin=33 f and lbus=12 h. ? the remote on/off control is referred to -vin.
spm15 series single output potted metal package isolated 15-watt dc-dc converters mdc_spm15.c01 page 8 of 36 www.murata-ps.com/support typical performance data, spm15-033-q48 62 64 66 68 70 72 74 76 78 80 82 84 86 88 90 92 0.51 11 1.51 21 2.51 31 3.51 41 4.51 52 ef?iency (%) load current ( am p s ) v in = 18v v in = 24v v in = 48v v in = 75v maximum current temperature derating at sea level vin = 18v, 24v, 36v, 48v, or 60v (air ? ow from pin j1 to pin j3 on pcb) maximum current temperature derating at sea level vin 75 (air ? ow from pin j1 to pin j3 on pcb) 0 1 2 3 4 5 6 30 35 40 45 50 55 60 65 70 75 80 85 output current (amps) ambient temperature (?) natural convection 0 1 2 3 4 5 6 30 35 40 45 50 55 60 65 70 75 80 85 output current (amps) ambient temperature (?) .5 m/s (100 lfm) natural convection ef? ciency vs. line voltage and load current @ 25c power dissipation 0 0.5 1 1.5 2 2.5 3 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 v in = 18v v in = 24v v in = 48v v in = 75v output load curre nt (amps) power dissipation (watts)
spm15 series single output potted metal package isolated 15-watt dc-dc converters mdc_spm15.c01 page 9 of 36 www.murata-ps.com/support functional specifications ?model spm15-050-q12 absolute maximum ratings conditions ? minimum typical/nominal maximum units input voltage, continuous 0 36 vdc input voltage, transient 100 ms max. duration 50 vdc isolation voltage input to output 1600 vdc on/off remote control power on, referred to -vin 0 15 vdc output power 1.48 15.23 w output current current-limited, no damage, short-circuit protected 0.30 3 a storage temperature range vin = zero (no power) -55 125 ?c absolute maximums are stress ratings. exposure of devices to greater than any of these conditions may adversely affect long-ter m reliability. proper operation under conditions other than those listed in the performance/functional speci? cations table is not implied or recommended. input operating voltage range 9 24 36 vdc recommended external fuse fast blow 4 a start-up threshold rising input voltage 8 8.6 9 vdc start up threshold @-40c 9.5 10.0 10.5 vdc undervoltage shutdown falling input voltage 7.8 8.25 9 vdc internal filter type c input current full load input current vin = nominal 0.71 0.73 a low line input current vin = minimum 1.91 1.97 a inrush transient 0.05 a 2 -sec. short circuit input current 50 100 ma minimum load input current iout = minimum, unit=on 105 135 ma shut-down input current (off, uv, ot) 12ma re ected (back) ripple current ? measured at input with speci? ed ? lter 30 ma, p-p general and safety ef ciency vin = 24v, full load 85.5 88 % vin = min., full load 86 87.3 % isolation isolation voltage input to output 1600 vdc isolation resistance 10 m isolation capacitance 1500 pf safety certi? ed to ul-60950-1, csa-c22.2 no. 60950- 1, iec/60950-1, 2nd edition, with am1 yes calculated mtbf per telcordia sr332, issue 1, class 3, ground ? xed, tambient = +25c 6.2 hours x 10 6 dynamic characteristics fixed switching frequency 330 350 370 khz startup time power on to vout regulated 50 ms startup time remote on to vout regulated 50 ms dynamic load response 50-75-50% load step, settling time to within 1% of vout 100 150 sec dynamic load peak deviation same as above 85 125 mv features and options remote on/off control ? ? suf x negative logic, on state on = ground pin -0.7 0.8 v negative logic, off state off = pin open 10 15 v control current open collector/drain 1 ma ? suf x positive logic, on state on = pin open 10 15 v positive logic, off state off = ground pin -0.7 0.7 v control current open collector/drain 1 ma
spm15 series single output potted metal package isolated 15-watt dc-dc converters mdc_spm15.c01 page 10 of 36 www.murata-ps.com/support output conditions ? ? minimum typical/nominal maximum units total output power 1.48 15 15.23 w voltage nominal output voltage no trim 4.925 5 5.075 vdc setting accuracy at 50% load, no trim -1.5 1.5 % of vnom output voltage range user-adjustable -10 10 % of vnom. overvoltage protection via magnetic feedback 5.75 5.9 7 vdc current output current range 0.3 3 3 a current limit inception 98% of vnom., after warmup 3.5 4.75 6.5 a short circuit short circuit current hiccup technique, autorecovery within 1.25% of vout 0.3 a short circuit duration (remove short for recovery) output shorted to ground, no damage continuous short circuit protection method current limiting regulation line regulation vin = min. to max., vout = nom., iout = nom. 0.05 % of vout load regulation iout = min. to max., vin = 24v 0.1 % of vout ripple and noise 5 hz- 20 mhz bw, vin=24v 40 70 mv pk-pk temperature coef cient at all outputs 0.02 % of vnom./c maximum capacitive loading low esr 1000 f mechanical outline dimensions 1 x 1 x 0.41 inches (please refer to outline drawing) wxlxh 25.4 x 25.4 x 10.41 mm weight 0.69 ounces 19.56 grams through hole pin diameter 0.04 inches 1.016 mm through hole pin material copper alloy th pin plating metal and thickness nickel subplate 50 -inches gold overplate 5 -inches environmental operating ambient temperature range see derating -40 85 c operating case temperature range no derating -40 105 c case material tin plated steel with black powder coat storage temperature vin = zero (no power) -55 125 c thermal protection/shutdown measured in center 110 115 120 c electromagnetic interference external ? lter is required conducted, en55022/cispr22 b class rohs rating rohs-6 functional specifications (cont.) ?model spm15-050-q12 notes ? unless otherwise noted, all speci? cations are at nominal input voltage, nominal out- put voltage and full load. general conditions are +25? celsius ambient temperature, near sea level altitude, natural convection air? ow. all models are tested and speci? ed with external parallel 1 f and 10 f output capacitors. the external input capacitor is 100 f, electrolytic. all capacitors are low-esr types wired close to the converter. ? input (back) ripple current is tested and speci? ed over 5 hz to 20 mhz bandwidth. input ? ltering is cbus=220 f, cin=33 f and lbus=12 h. ? the remote on/off control is referred to -vin.
spm15 series single output potted metal package isolated 15-watt dc-dc converters mdc_spm15.c01 page 11 of 36 www.murata-ps.com/support typical performance data, spm15-050-q12 50 54 58 62 66 70 74 78 82 86 90 0.29 0.59 0.89 1.19 1.49 1.79 2.09 2.39 2.99 ef?iency (%) load current (amps) v in = 36v v in = 30v v in = 24v v in = 12v v in = 9v maximum current temperature derating at sea level vin = 9v, 12v, or 24v (air ? ow from pin j1 to pin j3 on pcb) maximum current temperature derating at sea level vin 36 (air ? ow from pin j1 to pin j3 on pcb) 0 1 2 3 4 30 35 40 45 50 55 60 65 70 75 80 85 output current (amps) ambient temperature (?) natural convection 0 1 2 3 4 30 35 40 45 50 55 60 65 70 75 80 85 output current (amps) ambient temperature (?) .5 m/s (100 lfm) natural convection ef? ciency vs. line voltage and load current @ 25c power dissipation 0.50 0.75 1.00 1.25 1.50 1.75 2.00 2.25 2.50 0.29 0.59 0.90 1.20 1.50 1.80 2.09 2.40 3.00 v in = 36v v in = 30v v in = 24v v in = 12v v in = 9v output load curre nt (amps) power dissipation (watts)
spm15 series single output potted metal package isolated 15-watt dc-dc converters mdc_spm15.c01 page 12 of 36 www.murata-ps.com/support typical performance data, spm15-050-q12 stepload transient response (vin = 24v, iout = 0.75 to 2.25a to 0.75a, cload = 1f || 10f, ta = +25c) ch1 = iout, ch4 = vout start-up delay (vin = 24v, iout = 3a, cload = 1f || 10f, ta = +25c) ch1 = vin, ch4 = vout output ripple and noise (vin = 24v, iout = 0.30a, cload = 1f || 10f, ta = +25c, bw = 20mhz) on/off enable delay (vin = 24v, iout = 3a, cload = 1f || 10f, ta = +25c) ch1 = enable, ch4 = vout output ripple and noise (vin = 24v, iout = 3a, cload = 1f || 10f, ta = +25c, bw = 20mhz)
spm15 series single output potted metal package isolated 15-watt dc-dc converters mdc_spm15.c01 page 13 of 36 www.murata-ps.com/support functional specifications ?model spm15-050-q48 absolute maximum ratings conditions ? minimum typical/nominal maximum units input voltage, continuous 0 80 vdc input voltage, transient 100 ms max. duration 100 vdc isolation voltage input to output 1600 vdc on/off remote control power on, referred to -vin 0 15 vdc output power 1.48 15.23 w output current current-limited, no damage, short-circuit protected 0.3 3 a storage temperature range vin = zero (no power) -55 125 ?c absolute maximums are stress ratings. exposure of devices to greater than any of these conditions may adversely affect long-ter m reliability. proper operation under conditions other than those listed in the performance/functional speci? cations table is not implied or recommended. input operating voltage range 18 48 75 vdc recommended external fuse fast blow 1.5 a start-up threshold rising input voltage 16 16.9 17.9 vdc undervoltage shutdown falling input voltage 15 16 17.5 vdc internal filter type c input current full load input current vin = nominal 0.35 0.37 a low line input current vin = minimum 0.93 0.97 a inrush transient 0.05 a 2 -sec. short circuit input current 0.05 0.1 ma minimum load input current iout = minimum, unit=on 56 90 ma shut-down input current (off, uv, ot) 12ma re ected (back) ripple current ? measured at input with speci? ed ? lter 30 ma, p-p general and safety ef ciency vin = 48v, full load 86.5 88.5 % vin = min., full load 87.5 89.5 % isolation isolation voltage input to output 1600 vdc isolation resistance 10 m isolation capacitance 1500 pf safety certi? ed to ul-60950-1, csa-c22.2 no. 60950- 1, iec/60950-1, 2nd edition, with am1 yes calculated mtbf per telcordia sr332, issue 1, class 3, ground ? xed, tambient = +25c 2 hours x 10 6 dynamic characteristics fixed switching frequency 320 345 375 khz startup time power on to vout regulated 10 50 ms startup time remote on to vout regulated 10 100 ms dynamic load response 50-75-50% load step, settling time to within 1% of vout 60 120 sec dynamic load peak deviation same as above 50 150 mv features and options remote on/off control ? ? suf x negative logic, on state on = ground pin -0.7 0.8 v negative logic, off state off = pin open 10 15 v control current open collector/drain 1 ma ? suf x positive logic, on state on = pin open 10 15 v positive logic, off state off = ground pin -0.7 0.7 v control current open collector/drain 1 ma
spm15 series single output potted metal package isolated 15-watt dc-dc converters mdc_spm15.c01 page 14 of 36 www.murata-ps.com/support output conditions ? ? minimum typical/nominal maximum units total output power 1.48 15 15.23 w voltage nominal output voltage no trim 4.925 5 5.075 vdc setting accuracy at 50% load, no trim -1.5 1.5 % of vnom output voltage range user-adjustable -10 10 % of vnom. overvoltage protection via magnetic feedback 6 7 8 vdc current output current range 0.3 3 3 a current limit inception 98% of vnom., after warmup 3.75 4.5 5.5 a short circuit short circuit current hiccup technique, autorecovery within 1.25% of vout 0.3 a short circuit duration (remove short for recovery) output shorted to ground, no damage continuous short circuit protection method current limiting regulation line regulation vin = min. to max., vout = nom., iout = nom. 0.3 % of vout load regulation iout = min. to max., vin = 48v 0.2 % of vout ripple and noise 5 hz- 20 mhz bw, vin=48v 60 95 mv pk-pk maximum capacitive loading low esr 470 f mechanical outline dimensions 1 x 1 x 0.41 inches (please refer to outline drawing) wxlxh 25.4 x 25.4 x 10.41 mm weight 0.69 ounces 19.56 grams through hole pin diameter 0.04 inches 1.016 mm through hole pin material copper alloy th pin plating metal and thickness nickel subplate 50 -inches gold overplate 5 -inches environmental operating ambient temperature range see derating -40 85 c operating case temperature range no derating -40 85 c case material tin plated steel with black powder coat storage temperature vin = zero (no power) -55 125 c thermal protection/shutdown measured in center 130 135 150 c electromagnetic interference external ? lter is required conducted, en55022/cispr22 b class rohs rating rohs-6 functional specifications (cont.) ?model spm15-050-q48 notes ? unless otherwise noted, all speci? cations are at nominal input voltage, nominal out- put voltage and full load. general conditions are +25? celsius ambient temperature, near sea level altitude, natural convection air? ow. all models are tested and speci? ed with external parallel 1 f and 10 f output capacitors. the external input capacitor is 100 f, electrolytic. all capacitors are low-esr types wired close to the converter. ? input (back) ripple current is tested and speci? ed over 5 hz to 20 mhz bandwidth. input ? ltering is cbus=220 f, cin=33 f and lbus=12 h. ? the remote on/off control is referred to -vin.
spm15 series single output potted metal package isolated 15-watt dc-dc converters mdc_spm15.c01 page 15 of 36 www.murata-ps.com/support typical performance data, spm15-050-q48 45 50 55 60 65 70 75 80 85 90 0.35 0.68 1.02 1.35 1.69 2.02 2.35 2.68 3.02 ef?iency (%) load current (amps) v in = 75v v in = 48v v in = 36v v in = 24v v in = 18v maximum current temperature derating at sea level vin = 18v, 24v, 36v, or 48v (air ? ow from pin 1 to pin 2 on pcb) maximum current temperature derating at sea level vin 60 (air ? ow from pin 1 to pin 2 on pcb) maximum current temperature derating at sea level vin 75 (air ? ow from pin 1 to pin 2 on pcb) 0 1 2 3 4 30 35 40 45 50 55 60 65 70 75 80 85 output current (amps) ambient temperature (?) 0.5 m/s (100 lfm); 1.0 m/s (200 lfm); 1.5 m/s (300 lfm); 2.0 m/s (400 lfm); natural convection 0 1 2 3 4 30 35 40 45 50 55 60 65 70 75 80 85 output current (amps) ambient temperature (?) 0.5 m/s (100 lfm); 1.0 m/s (200 lfm); 1.5 m/s (300 lfm); 2.0 m/s (400 lfm) natural convection 0 1 2 3 4 30 35 40 45 50 55 60 65 70 75 80 85 output current (amps) ambient temperature (?) 0.5 m/s (100 lfm); 1.0 m/s (200 lfm); 1.5 m/s (300 lfm); 2.0 m/s (400 lfm) natural convection ef? ciency vs. line voltage and load current @ 25c power dissipation 0.5 1.0 1.5 2.0 2.5 3.0 0.35 0.68 1.02 1.35 1.69 2.02 2.35 2.68 3.02 output load curre nt (amps) power dissipation (watts) v in = 75v v in = 48v v in = 36v v in = 24v v in = 18v
spm15 series single output potted metal package isolated 15-watt dc-dc converters mdc_spm15.c01 page 16 of 36 www.murata-ps.com/support functional specifications ?model SPM15-120-Q12 absolute maximum ratings conditions ? minimum typical/nominal maximum units input voltage, continuous 0 36 vdc input voltage, transient 100 ms max. duration 50 vdc isolation voltage input to output 1600 vdc on/off remote control power on, referred to -vin 0 15 vdc output power 1.54 15.76 w output current current-limited, no damage, short-circuit protected 0.13 1.3 a storage temperature range vin = zero (no power) -55 125 ?c absolute maximums are stress ratings. exposure of devices to greater than any of these conditions may adversely affect long-ter m reliability. proper operation under conditions other than those listed in the performance/functional speci? cations table is not implied or recommended. input operating voltage range 9 24 36 vdc recommended external fuse fast blow 4 a start-up threshold rising input voltage 8 8.5 9 vdc undervoltage shutdown falling input voltage 7.9 8.2 8.7 vdc internal filter type c input current full load input current vin = nominal 0.77 0.8 a low line input current vin = minimum 2.05 2.11 a inrush transient 0.05 a 2 -sec. short circuit input current 50 120 ma minimum load input current iout = minimum, unit=on 105 130 ma shut-down input current (off, uv, ot) 1 2.5 ma re ected (back) ripple current ? measured at input with speci? ed ? lter 30 ma, p-p general and safety ef ciency vin = 24v, full load 82.5 84 % vin = min., full load 83 84.5 % isolation isolation voltage input to output 1600 vdc isolation resistance 10 m isolation capacitance 1500 pf safety certi? ed to ul-60950-1, csa-c22.2 no. 60950- 1, iec/60950-1, 2nd edition, with am1 yes calculated mtbf per telcordia sr332, issue 1, class 3, ground ? xed, tambient = +25c tbd hours x 10 6 dynamic characteristics fixed switching frequency 300 330 360 khz startup time power on to vout regulated 5 50 ms startup time remote on to vout regulated 5 50 ms dynamic load response 50-75-50% load step, settling time to within 1% of vout 60 120 sec dynamic load peak deviation same as above 100 150 mv features and options remote on/off control ? ? suf x negative logic, on state on = ground pin -0.7 0.8 v negative logic, off state off = pin open 10 15 v control current open collector/drain 1 ma ? suf x positive logic, on state on = pin open 10 15 v positive logic, off state off = ground pin -0.7 0.7 v control current open collector/drain 1 ma
spm15 series single output potted metal package isolated 15-watt dc-dc converters mdc_spm15.c01 page 17 of 36 www.murata-ps.com/support output conditions ? ? minimum typical/nominal maximum units total output power 1.54 15.6 15.76 w voltage nominal output voltage no trim 11.88 12 12.12 vdc setting accuracy at 50% load, no trim -1 1 % of vnom output voltage range user-adjustable -10 10 % of vnom. overvoltage protection via magnetic feedback 15.5 17.2 19.5 vdc current output current range 0.13 1.3 1.3 a current limit inception 98% of vnom., after warmup 1.5 2.1 2.6 a short circuit short circuit current hiccup technique, autorecovery within 1.25% of vout 0.3 a short circuit duration (remove short for recovery) output shorted to ground, no damage continuous short circuit protection method current limiting regulation line regulation vin = min. to max., vout = nom., iout = nom. 0.05 % of vout load regulation iout = min. to max., vin = 24v 0.1 % of vout ripple and noise 5 hz- 20 mhz bw, vin=24v 60 120 mv pk-pk temperature coef cient at all outputs 0.02 % of vnom./c maximum capacitive loading low esr 470 f mechanical outline dimensions 1 x 1 x 0.41 inches (please refer to outline drawing) wxlxh 25.4 x 25.4 x 10.41 mm weight 0.69 ounces 19.56 grams through hole pin diameter 0.04 inches 1.016 mm through hole pin material copper alloy th pin plating metal and thickness nickel subplate 50 -inches gold overplate 5 -inches environmental operating ambient temperature range see derating -40 85 c operating case temperature range no derating -40 105 c case material tin plated steel with black powder coat storage temperature vin = zero (no power) -55 125 c thermal protection/shutdown measured in center 110 115 120 c electromagnetic interference external ? lter is required conducted, en55022/cispr22 b class rohs rating rohs-6 functional specifications (cont.) ?model SPM15-120-Q12 notes ? unless otherwise noted, all speci? cations are at nominal input voltage, nominal out- put voltage and full load. general conditions are +25? celsius ambient temperature, near sea level altitude, natural convection air? ow. all models are tested and speci? ed with external parallel 1 f and 10 f output capacitors. the external input capacitor is 100 f, electrolytic. all capacitors are low-esr types wired close to the converter. ? input (back) ripple current is tested and speci? ed over 5 hz to 20 mhz bandwidth. input ? ltering is cbus=220 f, cin=33 f and lbus=12 h. ? the remote on/off control is referred to -vin.
spm15 series single output potted metal package isolated 15-watt dc-dc converters mdc_spm15.c01 page 18 of 36 www.murata-ps.com/support typical performance data, SPM15-120-Q12 ef? ciency vs. line voltage and load current @ 25c 70 72 74 76 78 80 82 84 86 88 0.13 0.26 0.39 0.52 0.65 0.78 0.91 1.04 1.17 1.30 v in = 9v v in = 12v v in = 24v v in = 36v ef?iency (%) load current (amps) maximum current temperature derating at sea level vin = 9v (air ? ow from pin 1 to pin 2 on pcb) maximum current temperature derating at sea level vin = 24v (air ? ow from pin 1 to pin 2 on pcb) maximum current temperature derating at sea level vin = 12v (air ? ow from pin 1 to pin 2 on pcb) maximum current temperature derating at sea level vin = 36v (air ? ow from pin 1 to pin 2 on pcb) 0 1 2 30 35 40 45 50 55 60 65 70 75 80 85 output current (amps) ambient temperature (?) 0.33 m/s (65 lfm); 1.0 m/s (200 lfm); 1.5 m/s (300 lfm); 2.0 m/s (400 lfm) natural convection 0 1 2 30 35 40 45 50 55 60 65 70 75 80 85 output current (amps) ambient temperature (?) 0.33 m/s (65 lfm); 1.0 m/s (200 lfm); 1.5 m/s (300 lfm); 2.0 m/s (400 lfm) natural convection 0 1 2 30 35 40 45 50 55 60 65 70 75 80 85 output current (amps) ambient temperature (?) 0.33 m/s (65 lfm); 1.0 m/s (200 lfm); 1.5 m/s (300 lfm); 2.0 m/s (400 lfm); natural convection 0 1 2 30 35 40 45 50 55 60 65 70 75 80 85 output current (amps) ambient temperature (?) 0.33 m/s (65 lfm); 1.0 m/s (200 lfm); 1.5 m/s (300 lfm); 2.0 m/s (400 lfm) natural convection
spm15 series single output potted metal package isolated 15-watt dc-dc converters mdc_spm15.c01 page 19 of 36 www.murata-ps.com/support typical performance data, SPM15-120-Q12 start-up delay (vin = 24v, iout = 1.3a, cload = 470f, ta = +25c) ch1 = vout, ch3 = vin. output ripple and noise (vin = 24v, iout = 1.3a, cload = 1f || 10f, ta = +25c, bw = 20mhz) stepload transient response (vin = 24v, iout = 50-75-50% of imax, cload = 1f || 10f, io = 200ma/div, ta = +25c) ch2 = vout, ch4 = iout) on/off enable delay (vin = 24v, iout = 1.3a, cload = 470f, ta = +25c) ch1 = enable, ch2 = vout. output ripple and noise (vin = 24v, iout = 0.13a, cload = 1f || 10f, ta = +25c, bw = 20mhz) stepload transient response (vin = 24v, iout = 50-75-50% of imax, cload = 470f, io = 200ma/div, ta = +25c) ch2 = vout, ch4 = iout)
spm15 series single output potted metal package isolated 15-watt dc-dc converters mdc_spm15.c01 page 20 of 36 www.murata-ps.com/support functional specifications ?model spm15-120-q48 absolute maximum ratings conditions ? minimum typical/nominal maximum units input voltage, continuous 0 80 vdc input voltage, transient 100 ms max. duration 100 vdc isolation voltage input to output 1600 vdc on/off remote control power on, referred to -vin 0 15 vdc output power 1.54 15.76 w output current current-limited, no damage, short-circuit protected 0.13 1.3 a storage temperature range vin = zero (no power) -55 125 ?c absolute maximums are stress ratings. exposure of devices to greater than any of these conditions may adversely affect long-ter m reliability. proper operation under conditions other than those listed in the performance/functional speci? cations table is not implied or recommended. input operating voltage range 18 48 75 vdc recommended external fuse fast blow 1.5 a start-up threshold rising input voltage 16 16.75 17.5 vdc undervoltage shutdown falling input voltage 15 16 17 vdc turn-on/turn-off hysteresis 1.5 vdc internal filter type lc input current full load input current vin = 24v 0.76 0.782 a full load input current vin = 48v 0.387 0.400 a low line input current vin = minimum 1.032 1.042 inrush transient 0.05 a 2 -sec. short circuit input current 50 100 ma minimum load input current iout = minimum, unit = on 56 90 ma shut-down input current (off, uv, ot) 12ma re ected (back) ripple current ? measured at input with speci? ed ? lter 30 ma, p-p general and safety ef ciency vin = 48v, full load 82 85.5 % vin = 24v., full load 84 84 % isolation isolation voltage input to output 1600 vdc isolation resistance 10 m isolation capacitance 1500 pf safety certi? ed to ul-60950-1, csa-c22.2 no. 60950- 1, iec/60950-1, 2nd edition, with am1 yes calculated mtbf per telcordia sr332, issue 1, class 3, ground ? xed, tambient = +25c 6.4 hours x 10 6 dynamic characteristics fixed switching frequency 300 335 370 khz startup time power on to vout regulated 10 50 ms startup time remote on to vout regulated 10 50 ms dynamic load response 50-75-50% load step, settling time to within 1% of vout 50 100 sec dynamic load peak deviation same as above 125 200 mv features and options remote on/off control ? ? suf x negative logic, on state on = ground pin -0.7 0.8 v negative logic, off state off = pin open 10 15 v control current open collector/drain 1 ma ? suf x positive logic, on state on = pin open 10 15 v positive logic, off state off = ground pin -0.7 0.7 v control current open collector/drain 1 ma
spm15 series single output potted metal package isolated 15-watt dc-dc converters mdc_spm15.c01 page 21 of 36 www.murata-ps.com/support functional specifications (cont.) ?model spm15-120-q48 output conditions ? ? minimum typical/nominal maximum units total output power 1.54 15.6 15.76 w voltage nominal output voltage no trim 11.88 12 12.12 vdc setting accuracy at 50% load, no trim -1 1 % of vnom output voltage range user-adjustable -10 10 % of vnom. overvoltage protection via magnetic feedback 14.5 16.5 17.5 vdc current output current range 0.13 1.3 1.3 a current limit inception 98% of vnom., after warmup 1.5 1.9 2.3 a short circuit short circuit current hiccup technique, autorecovery within 1.25% of vout tbd a short circuit duration (remove short for recovery) output shorted to ground, no damage continuous short circuit protection method current limiting regulation line regulation vin = min. to max., vout = nom., iout = nom. 0.075 % of vout load regulation iout = min. to max., vin = 48v 0.05 % of vout ripple and noise 5 hz- 20 mhz bw, vin=48v 85 120 mv pk-pk temperature coef cient at all outputs 0.02 % of vnom./c maximum capacitive loading low esr 470 f mechanical outline dimensions 1 x 1 x 0.41 inches (please refer to outline drawing) wxlxh 25.4 x 25.4 x 10.41 mm weight 0.69 ounces 19.56 grams through hole pin diameter 0.04 inches 1.016 mm through hole pin material copper alloy th pin plating metal and thickness nickel subplate 50 -inches gold overplate 5 -inches environmental operating ambient temperature range see derating -40 85 c operating case temperature range no derating -40 105 c case material tin plated steel with black powder coat storage temperature vin = zero (no power) -55 125 c thermal protection/shutdown measured in center 130 135 150 c electromagnetic interference external ? lter is required conducted, en55022/cispr22 b class rohs rating rohs-6 notes ? unless otherwise noted, all speci? cations are at nominal input voltage, nominal out- put voltage and full load. general conditions are +25? celsius ambient temperature, near sea level altitude, natural convection air? ow. all models are tested and speci? ed with external parallel 1 f and 10 f output capacitors. the external input capacitor is 4.7 f. all capacitors are low-esr types wired close to the converter. ? input (back) ripple current is tested and speci? ed over 5 hz to 20 mhz bandwidth. input ? ltering is cbus=220 f, cin=33 f and lbus=12 h. ? the remote on/off control is referred to -vin.
spm15 series single output potted metal package isolated 15-watt dc-dc converters mdc_spm15.c01 page 22 of 36 www.murata-ps.com/support typical performance data, spm15-120-q48 ef? ciency vs. line voltage and load current @ 25c 0 1 2 30 35 40 45 50 55 60 65 70 75 80 85 output current (amps) ambient temperature (?) 0.33 m/s (65 lfm); 1.0 m/s (200 lfm); 1.5 m/s (300 lfm); 2.0 m/s (400 lfm) natural convection maximum current temperature derating at sea level vin = 18v (air ? ow from pin 1 to pin 2 on pcb) maximum current temperature derating at sea level vin = 48v (air ? ow from pin 1 to pin 2 on pcb) maximum current temperature derating at sea level vin = 24v (air ? ow from pin 1 to pin 2 on pcb) maximum current temperature derating at sea level vin = 75v (air ? ow from pin 1 to pin 2 on pcb) 0 1 2 30 35 40 45 50 55 60 65 70 75 80 85 output current (amps) ambient temperature (?) 0.33 m/s (65 lfm); 1.0 m/s (200 lfm); 1.5 m/s (300 lfm); 2.0 m/s (400 lfm) natural convection 0 1 2 30 35 40 45 50 55 60 65 70 75 80 85 output current (amps) ambient temperature (?) 0.33 m/s (65 lfm); 1.0 m/s (200 lfm); 1.5 m/s (300 lfm); 2.0 m/s (400 lfm); natural convection 0 1 2 30 35 40 45 50 55 60 65 70 75 80 85 output current (amps) ambient temperature (?) 0.33 m/s (65 lfm); 1.0 m/s (200 lfm); 1.5 m/s (300 lfm); 2.0 m/s (400 lfm) natural convection 0 1 2 30 35 40 45 50 55 60 65 70 75 80 85 output current (amps) ambient temperature (?) 0.33 m/s (65 lfm); 1.0 m/s (200 lfm); 1.5 m/s (300 lfm); 2.0 m/s (400 lfm) natural convection
spm15 series single output potted metal package isolated 15-watt dc-dc converters mdc_spm15.c01 page 23 of 36 www.murata-ps.com/support functional specifications ?model spm15-150-q12 absolute maximum ratings conditions ? minimum typical/nominal maximum units input voltage, continuous 0 36 vdc input voltage, transient 100 ms max. duration 50 vdc isolation voltage input to output 1600 vdc on/off remote control power on, referred to -vin 0 15 vdc output power 1.63 16.67 w output current current-limited, no damage, short-circuit protected 0.11 1.1 a storage temperature range vin = zero (no power) -55 125 ?c absolute maximums are stress ratings. exposure of devices to greater than any of these conditions may adversely affect long-ter m reliability. proper operation under conditions other than those listed in the performance/functional speci? cations table is not implied or recommended. input operating voltage range 9 24 36 vdc recommended external fuse fast blow 4 a start-up threshold (@+25? and -40?) rising input voltage 8 8.5 9 vdc undervoltage shutdown falling input voltage 7.8 8.25 9 vdc internal filter type c input current full load input current vin = nominal 0.82 0.84 a low line input current vin = minimum 2.13 2.19 a inrush transient 0.05 a 2 -sec. short circuit input current 50 100 ma minimum load input current iout = minimum, unit = on 130 150 ma shut-down input current (off, uv, ot) 1 2.5 ma re ected (back) ripple current ? measured at input with speci? ed ? lter 30 ma, p-p general and safety ef ciency vin = 24v, full load 82.5 84 % vin = min., full load 84.5 86 % isolation isolation voltage input to output 1600 vdc insulation safety rating basic isolation resistance 10 m isolation capacitance 1500 pf safety certi? ed to ul-60950-1, csa-c22.2 no. 60950- 1, iec/60950-1, 2nd edition, with am1 yes calculated mtbf per telcordia sr332, issue 1, class 3, ground ? xed, tambient = +25c tbd hours x 10 6 dynamic characteristics fixed switching frequency 300 330 360 khz startup time power on to vout regulated 50 ms startup time remote on to vout regulated 50 ms dynamic load response 50-75-50% load step, settling time to within 1% of vout 100 150 sec dynamic load peak deviation same as above 150 250 mv features and options remote on/off control ? ? suf x negative logic, on state on = ground pin -0.7 0.8 v negative logic, off state off = pin open 10 15 v control current open collector/drain 1 ma ? suf x positive logic, on state on = pin open 10 15 v positive logic, off state off = ground pin -0.7 0.7 v control current open collector/drain 1 ma
spm15 series single output potted metal package isolated 15-watt dc-dc converters mdc_spm15.c01 page 24 of 36 www.murata-ps.com/support functional specifications (cont.) ?model spm15-150-q12 output conditions ? ? minimum typical/nominal maximum units total output power 1.63 16.5 16.67 w voltage nominal output voltage no trim 14.85 15 15.15 vdc setting accuracy at 50% load, no trim 1 1 % of vnom output voltage range user-adjustable -10 10 % of vnom. overvoltage protection via magnetic feedback 17 19.5 22.5 vdc current output current range 0.11 1.1 1.1 a current limit inception 98% of vnom., after warmup 1.2 1.6 2 a short circuit short circuit current hiccup technique, autorecovery within 1.25% of vout 0.3 a short circuit duration (remove short for recovery) output shorted to ground, no damage continuous short circuit protection method current limiting regulation line regulation vin = min. to max., vout = nom., iout = nom. 0.1 % of vout load regulation iout = min. to max., vin = 24v 0.1 % of vout ripple and noise 5 hz- 20 mhz bw, vin=24v 130 175 mv pk-pk temperature coef cient at all outputs 0.02 % of vnom./c maximum capacitive loading low esr 470 f mechanical outline dimensions 1 x 1 x 0.41 inches (please refer to outline drawing) wxlxh 25.4 x 25.4 x 10.41 mm weight 0.69 ounces 19.56 grams through hole pin diameter 0.04 inches 1.016 mm through hole pin material copper alloy th pin plating metal and thickness nickel subplate 50 -inches gold overplate 5 -inches environmental operating ambient temperature range see derating -40 85 c operating case temperature range no derating -40 105 c case material tin plated steel with black powder coat storage temperature vin = zero (no power) -55 125 c thermal protection/shutdown measured in center 110 115 120 c electromagnetic interference external ? lter is required conducted, en55022/cispr22 b class rohs rating rohs-6 notes ? unless otherwise noted, all speci? cations are at nominal input voltage, nominal out- put voltage and full load. general conditions are +25? celsius ambient temperature, near sea level altitude, natural convection air? ow. all models are tested and speci? ed with external parallel 1 f and 10 f output capacitors. the external input capacitor is 100 f, electrolytic. all capacitors are low-esr types wired close to the converter. ? input (back) ripple current is tested and speci? ed over 5 hz to 20 mhz bandwidth. input ? ltering is cbus=220 f, cin=33 f and lbus=12 h. ? the remote on/off control is referred to -vin.
spm15 series single output potted metal package isolated 15-watt dc-dc converters mdc_spm15.c01 page 25 of 36 www.murata-ps.com/support typical performance data, spm15-150-q12 ef? ciency vs. line voltage and load current @ 25c 60 65 70 75 80 85 90 0.11 0.22 0.33 0.44 0.55 0.66 0.77 0.88 0.99 1.1 v in = 9v v in = 12v v in = 24v v in = 36v ef?iency (%) load current (amps) maximum current temperature derating at sea level vin = 9, 12, or 24v (unit monuted on pcb)* maximum current temperature derating at sea level vin = 36v (air ? ow is from j1 to j3 on pcb* 0 1 2 30 35 40 45 50 55 60 65 70 75 80 85 output current (amps) ambient temperature (?) natural convection 0 1 2 30 35 40 45 50 55 60 65 70 75 80 85 output current (amps) ambient temperature (?) 0.33 m/s (65 lfm) natural convection *using burn in board, connection with solder
spm15 series single output potted metal package isolated 15-watt dc-dc converters mdc_spm15.c01 page 26 of 36 www.murata-ps.com/support typical performance data, spm15-150-q12 start-up delay (vin = 24v, iout = 1.1a, cload = 1f || 10f, ta = +25c) ch1 = vout, ch3 = vin output ripple and noise(vin = 24v, iout = 0.11a, cload = 1f || 10f, ta = +25c, bw = 20mhz) stepload transient response (vin = 24v, iout = 50% to 75%, cload = 1f || 10f, ta = +25c) ch1 = vout, ch4 = iout on/off enable delay (vin = 24v, iout = 1.1a, cload = 1f || 10f, ta = +25c) ch1 = vout, ch3 = enable output ripple and noise(vin = 24v, iout = 1.1a, cload = 1f || 10f, ta = +25c, bw = 20mhz)
spm15 series single output potted metal package isolated 15-watt dc-dc converters mdc_spm15.c01 page 27 of 36 www.murata-ps.com/support functional specifications ?model spm15-150-q48 absolute maximum ratings conditions ? minimum typical/nominal maximum units input voltage, continuous 0 80 vdc input voltage, transient 100 ms max. duration 100 vdc isolation voltage input to output 1600 vdc on/off remote control power on, referred to -vin 0 15 vdc output power 1.63 16.67 w output current current-limited, no damage, short-circuit protected 0.11 1.1 a storage temperature range vin = zero (no power) -55 125 ?c absolute maximums are stress ratings. exposure of devices to greater than any of these conditions may adversely affect long-ter m reliability. proper operation under conditions other than those listed in the performance/functional speci? cations table is not implied or recommended. input operating voltage range 18 48 75 vdc recommended external fuse fast blow 2 a start-up threshold rising input voltage 16 16.7 17.9 vdc undervoltage shutdown falling input voltage 15 16.2 17.5 vdc internal filter type c input current full load input current vin = nominal 0.41 0.42 a low line input current vin = minimum 1.06 1.09 a inrush transient 0.05 a 2 -sec. short circuit input current 50 100 ma minimum load input current iout = minimum, unit = on 60 85 ma shut-down input current (off, uv, ot) 12ma re ected (back) ripple current ? measured at input with speci? ed ? lter 30 ma, p-p general and safety ef ciency vin = 48v, full load 83 85.5 % vin = min., full load 85 86.5 % isolation isolation voltage input to output 1600 vdc insulation safety rating basic isolation resistance 10 m isolation capacitance 1500 pf safety certi? ed to ul-60950-1, csa-c22.2 no. 60950- 1, iec/60950-1, 2nd edition, with am1 yes calculated mtbf per telcordia sr332, issue 1, class 3, ground ? xed, tambient = +25c tbd hours x 10 6 dynamic characteristics fixed switching frequency 300 330 360 khz startup time power on to vout regulated 50 ms startup time remote on to vout regulated 50 ms dynamic load response 50-75-50% load step, settling time to within 1% of vout 60 120 sec dynamic load peak deviation same as above 150 250 mv features and options remote on/off control ? ? suf x negative logic, on state on = ground pin -0.7 0.8 v negative logic, off state off = pin open 10 15 v control current open collector/drain 1 ma ? suf x positive logic, on state on = pin open 10 15 v positive logic, off state off = ground pin -0.7 0.7 v control current open collector/drain 1 ma
spm15 series single output potted metal package isolated 15-watt dc-dc converters mdc_spm15.c01 page 28 of 36 www.murata-ps.com/support functional specifications (cont.) ?model spm15-150-q48 output conditions ? ? minimum typical/nominal maximum units total output power 1.63 16.5 16.67 w voltage nominal output voltage no trim 14.85 15 15.15 vdc setting accuracy at 50% load, no trim 1 1 % of vnom output voltage range user-adjustable -10 10 % of vnom. overvoltage protection via magnetic feedback 19 20 21.5 vdc current output current range 0.11 1.1 1.1 a current limit inception 98% of vnom., after warmup 1.3 1.7 2.2 a short circuit short circuit current hiccup technique, autorecovery within 1.25% of vout 0.3 a short circuit duration (remove short for recovery) output shorted to ground, no damage continuous short circuit protection method current limiting regulation line regulation vin = min. to max., vout = nom., iout = nom. 0.1 % of vout load regulation iout = min. to max., vin = 48v 0.075 % of vout ripple and noise 5 hz- 20 mhz bw, vin=24v 80 150 mv pk-pk temperature coef cient at all outputs 0.02 % of vnom./c maximum capacitive loading low esr 470 f mechanical outline dimensions 1 x 1 x 0.41 inches (please refer to outline drawing) wxlxh 25.4 x 25.4 x 10.41 mm weight 0.69 ounces 19.56 grams through hole pin diameter 0.04 inches 1.016 mm through hole pin material copper alloy th pin plating metal and thickness nickel subplate 50 -inches gold overplate 5 -inches environmental operating ambient temperature range see derating -40 85 c operating case temperature range no derating -40 105 c case material tin plated steel with black powder coat storage temperature vin = zero (no power) -55 125 c thermal protection/shutdown measured in center 110 115 120 c electromagnetic interference external ? lter is required conducted, en55022/cispr22 b class rohs rating rohs-6 notes ? unless otherwise noted, all speci? cations are at nominal input voltage, nominal out- put voltage and full load. general conditions are +25? celsius ambient temperature, near sea level altitude, natural convection air? ow. all models are tested and speci? ed with external parallel 1 f and 10 f output capacitors. the external input capacitor is 4.7 f. all capacitors are low-esr types wired close to the converter. ? input (back) ripple current is tested and speci? ed over 5 hz to 20 mhz bandwidth. input ? ltering is cbus=220 f, cin=33 f and lbus=12 h. ? the remote on/off control is referred to -vin.
spm15 series single output potted metal package isolated 15-watt dc-dc converters mdc_spm15.c01 page 29 of 36 www.murata-ps.com/support typical performance data, spm15-150-q48 ef? ciency vs. line voltage and load current @ 25c 60 65 70 75 80 85 90 0.11 0.22 0.33 0.44 0.55 0.66 0.77 0.88 0.99 1.1 v in = 9v v in = 12v v in = 24v v in = 36v ef?iency (%) load current (amps) maximum current temperature derating at sea level vin = 18, 24, or 36v (air ? ow from j 1 to j3 on pcb)* maximum current temperature derating at sea level vin = 60v (air ? ow from j 1 to j3 on pcb)* maximum current temperature derating at sea level vin = 48v (air ? ow from j 1 to j3 on pcb)* maximum current temperature derating at sea level vin = 75v (air ? ow from j 1 to j3 on pcb)* 0 1 2 30 35 40 45 50 55 60 65 70 75 80 85 output current (amps) ambient temperature (?) natural convection 0 1 2 30 35 40 45 50 55 60 65 70 75 80 85 output current (amps) ambient temperature (?) 0.33 m/s (65 lfm) natural convection 0 1 2 30 35 40 45 50 55 60 65 70 75 80 85 output current (amps) ambient temperature (?) 0.33 m/s (65 lfm) natural convection 0 1 2 30 35 40 45 50 55 60 65 70 75 80 85 output current (amps) ambient temperature (?) 0.33 m/s (65 lfm) natural convection *using burn in board, connection with solder
spm15 series single output potted metal package isolated 15-watt dc-dc converters mdc_spm15.c01 page 30 of 36 www.murata-ps.com/support typical performance data, spm15-150-q48 start-up delay (vin = 48v, iout = 1.1a, cload = 1f || 10f, ta = +25c) ch1 = vout, ch3 = vin output ripple and noise(vin = 48v, iout = 0.11a, cload = 1f || 10f, ta = +25c, bw = 20mhz) stepload transient response (vin = 48v, iout = 50% to 75%, cload = 1f || 10f, ta = +25c) ch1 = vout, ch4 = iout on/off enable delay (vin = 48v, iout = 1.1a, cload = 1f || 10f, ta = +25c) ch1 = vout, ch3 = enable output ripple and noise(vin = 48v, iout = 1.1a, cload = 1f || 10f, ta = +25c, bw = 20mhz)
spm15 series single output potted metal package isolated 15-watt dc-dc converters mdc_spm15.c01 page 31 of 36 www.murata-ps.com/support mechanical specifications 0.02 (0.508) ref 1.00 (25.4) 0.15 (3.81) 3 6 c l 1 2 c l 5 4 x 0.015-0.025 high non-metallic standoffs (dimples) 4x 0.060-0.100 insulating header 2 1 5 6 4 pin #1 indicator 3 pin #1 end view top view side view 0.41 (10.41) material: .040 pins: copper alloy finish: (all pins) gold (5"min) over nickel (50" min) bottom view 0.400 (10.16) 0.400 (10.16) 0.300 (7.62) 0.500 (12.7) 0.800 (20.32) 0.800 (20.32) isometric view (for ref only) input/output connections pin spm function (single output) 1 +vin 2 -vin 3 +vout 4 output trim* 5 -vout 6 on/off control* the remote on/off can be provided with either positive (p suf? x) or nega- tive (n suf? x) logic. see part number structure for options. third angle projection dimensions are in inches (mm shown for ref. only). components are shown for reference only. tolerances (unless otherwise speci?ed): .xx 0.02 (0.5) .xxx 0.010 (0.25) angles 2?
spm15 series single output potted metal package isolated 15-watt dc-dc converters mdc_spm15.c01 page 32 of 36 www.murata-ps.com/support recommended footprint (view through converter) standard packaging 0.100 0.100 finished hole sizes @ pins 1 thru 6 (per ipc-d-275, level c) 0.048-0.062 1.02 (25.91) min courtyard 1.02 (25.91) min courtyard 0.51 (12.95) 0.51 (12.95) 4x 0.100 'landing zones' for non-metallic standoffs (keep free of comps) 0.55 (13.97) 0.275 (6.99) c l c l c l 1 2 65 4 3 top view 0.400 (10.16) 0.400 (10.16) 0.800 (20.32) 0.800 (20.32) 16 units per tube 6 tubes per carton each static dissipative plastic tube holds 16 converters 21.88 (555.75) ref 1.16 (29.46) ref 0.91 (23.11) ref
spm15 series single output potted metal package isolated 15-watt dc-dc converters mdc_spm15.c01 page 33 of 36 www.murata-ps.com/support input fusing certain applications and/or safety agencies may require fuses at the inputs of power conversion components. fuses should also be used when there is the possibility of sustained input voltage reversal which is not current-limited. for greatest safety, we recommend a fast blow fuse installed in the ungrounded input supply line. the installer must observe all relevant safety standards and regulations. for safety agency approvals, install the converter in compliance with the end-user safety standard. input under-voltage shutdown and start-up threshold under normal start-up conditions, converters will not begin to regulate properly until the rising input voltage exceeds and remains at the start-up threshold voltage (see speci? cations). once operating, converters will not turn off until the input voltage drops below the under-voltage shutdown limit. subsequent restart will not occur until the input voltage rises again above the start-up threshold. this built-in hysteresis prevents any unstable on/off operation at a single input voltage. users should be aware however of input sources near the under-voltage shutdown whose voltage decays as input current is consumed (such as capacitor inputs), the converter shuts off and then restarts as the external capacitor re- charges. such situations could oscillate. to prevent this, make sure the operating input voltage is well above the uv shutdown voltage at all times. start-up delay assuming that the output current is set at the rated maximum, the vin to vout start- up delay (see speci? cations) is the time interval between the point when the rising input voltage crosses the start-up threshold and the fully loaded regulated output voltage enters and remains within its speci? ed regulation band. actual measured times will vary with input source impedance, external input capacitance, input volt- age slew rate and ? nal value of the input voltage as it appears at the converter. these converters include a soft start circuit to moderate the duty cycle of the pwm controller at power up, thereby limiting the input inrush current. the on/off remote control interval from inception to v out regulated as- sumes that the converter already has its input voltage stabilized above the start-up threshold before the on command. the interval is measured from the on command until the output enters and remains within its speci? ed regulation band. the speci? cation assumes that the output is fully loaded at maximum rated current. input source impedance these converters will operate to speci? cations without external components, assuming that the source voltage has very low impedance and reasonable in- put voltage regulation. since real-world voltage sources have ? nite impedance, performance is improved by adding external ? lter components. sometimes only a small ceramic capacitor is suf? cient. since it is dif? cult to totally characterize all applications, some experimentation may be needed. note that external input capacitors must accept high speed switching currents. technical notes because of the switching nature of dc/dc converters, the input of these converters must be driven from a source with both low ac impedance and adequate dc input regulation. performance will degrade with increasing input inductance. excessive input inductance may inhibit operation. the dc input regulation speci? es that the input voltage, once operating, must never degrade below the shut-down threshold under all load conditions. be sure to use adequate trace sizes and mount components close to the converter. i/o filtering, input ripple current and output noise all models in this converter series are tested and speci? ed for input re? ected ripple current and output noise using designated external input/output compo- nents, circuits and layout as shown in the ? gures below. external input capaci- tors (c in in the ? gure) serve primarily as energy storage elements, minimizing line voltage variations caused by transient ir drops in the input conductors. users should select input capacitors for bulk capacitance (at appropriate frequencies), low esr and high rms ripple current ratings. in the ? gure below, the c bus and l bus components simulate a typical dc voltage bus. your speci? c system con? guration may require additional considerations. please note that the values of c in , l bus and c bus may vary according to the speci? c converter model. in critical applications, output ripple and noise (also referred to as periodic and random deviations or pard) may be reduced by adding ? lter elements such as multiple external capacitors. be sure to calculate component tempera- ture rise from re? ected ac current dissipated inside capacitor esr. floating outputs since these are isolated dc/dc converters, their outputs are ? oating with respect to their input. the essential feature of such isolation is ideal zero current flow between input and output. real-world converters however do exhibit tiny leakage currents between input and output (see speci? cations). these leakages consist of both an ac stray capacitance coupling component and a dc leakage resistance. when using the isolation feature, do not allow the isolation voltage to exceed speci? cations. otherwise the converter may be damaged. designers will normally use the negative output (-output) as the ground return of the load circuit. you can however use the positive output (+output) as the ground return to effectively reverse the output polarity. c in v in c bus l bus c in = 33f, esr < 700m @ 100khz c bus = 220f, esr < 100m @ 100khz l bus = 12h 1 2 +vin ?vin current probe to oscilloscope + C + C figure 1. measuring input ripple current
spm15 series single output potted metal package isolated 15-watt dc-dc converters mdc_spm15.c01 page 34 of 36 www.murata-ps.com/support minimum output loading requirements these converters employ a synchronous recti? er design topology. all models regulate within speci? cation and are stable from 0% load to full load conditions, unless otherwise speci? ed. operation under no load will not damage the con- verter but might, however, slightly increase regulation, output ripple, and noise. thermal shutdown to protect against thermal over-stress, these converters include thermal shut- down circuitry. if environmental conditions cause the temperature of the dc/ dcs to rise above the operating temperature range up to the shutdown tem- perature, an on-board electronic temperature sensor will power down the unit. when the temperature decreases below the turn-on threshold, the converter will automatically restart. there is a small amount of hysteresis to prevent rapid on/off cycling. caution: if you operate too close to the thermal limits, the converter may shut down suddenly without warning. be sure to thoroughly test your application to avoid unplanned thermal shutdown. temperature derating curves the graphs in the performance data section illustrate typical operation under a variety of conditions. the derating curves show the maximum continuous ambient air temperature and decreasing maximum output current which is acceptable under increasing forced air? ow measured in linear feet per minute (lfm). note that these are average measurements. the converter will accept brief increases in tem- perature and/or current or reduced air? ow as long as the average is not exceeded. note that the temperatures are of the ambient air? ow, not the converter it- self which is obviously running at higher temperature than the outside air. also note that natural convection is de? ned as very low ? ow rates which are not using fan-forced air? ow. depending on the application, natural convection is usually about 30-65 lfm but is not equal to still air (0 lfm). murata power solutions makes characterization measurements in a closed cycle wind tunnel with calibrated air? ow. we use both thermocouples and an infrared camera system to observe thermal performance. as a practical matter, it is quite dif? cult to insert an anemometer to precisely measure air? ow in most applications. sometimes it is possible to estimate the effective air? ow if you thoroughly understand the enclosure geometry, entry/exit ori? ce areas and the fan ? owrate speci? cations. caution: if you exceed these derating guidelines, the converter may have an unplanned over temperature shut down. also, these graphs are all collected near sea level altitude. be sure to reduce the derating for higher altitude. output overvoltage protection (ovp) this converter monitors its output voltage for an over-voltage condition using an on-board electronic comparator. the signal is optically coupled to the pri- mary side pwm controller. if the output exceeds ovp limits, the sensing circuit will power down the unit, and the output voltage will decrease. after a time-out period, the pwm will automatically attempt to restart, causing the output volt- age to ramp up to its rated value. it is not necessary to power down and reset the converter for this automatic ovp-recovery restart. if the fault condition persists and the output voltage climbs to excessive levels, the ovp circuitry will initiate another shutdown cycle. this on/off cycling is referred to as hiccup mode. output fusing the converter is extensively protected against current, voltage and temperature extremes. however, your application circuit may need additional protection. in the extremely unlikely event of output circuit failure, excessive voltage could be applied to your circuit. consider using an appropriate external protection. output current limiting as soon as the output current increases to approximately its overcurrent limit, the dc/dc converter will enter a current-limiting mode. the output voltage will decrease proportionally with increases in output current, thereby maintaining a somewhat constant power output. this is commonly referred to as power limiting. current limiting inception is de? ned as the point at which full power falls below the rated tolerance. see the performance/functional speci? cations. note particularly that the output current may brie? y rise above its rated value. this enhances reliability and continued operation of your application. if the output current is too high, the converter will enter the short circuit condition. output short circuit condition when a converter is in current-limit mode, the output voltage will drop as the output current demand increases. if the output voltage drops too low, the magnetically coupled voltage used to develop pwm bias voltage will also drop, thereby shutting down the pwm controller. following a time-out period, the pwm will restart, causing the output voltage to begin rising to its appropriate value. if the short-circuit condition persists, another shutdown cycle will initi- ate. this on/off cycling is called hiccup mode. the hiccup cycling reduces the average output current, thereby preventing excessive internal temperatures. trimming the output voltage the trim input to the converter allows the user to adjust the output voltage over the rated trim range (please refer to the speci? cations). in the trim equations and circuit diagrams that follow, trim adjustments use a single ? xed resistor connected between the trim input and either vout pin. trimming resistors should have a low temperature coef? cient (100 ppm/c or less) and be mounted close to the converter. keep leads short. if the trim function is not used, leave the trim unconnected. with no trim, the converter will exhibit its speci? ed output voltage accuracy. there are two cautions to observe for the trim input: caution: to avoid unplanned power down cycles, do not exceed either the maximum output voltage or the maximum output power when setting the trim. if the output voltage is excessive, the ovp circuit may inadvertantly shut down the converter. if the maximum power is exceeded, the converter may figure 2. measuring output ripple and noise (pard) c1 c1 = 1f c2 = 10f load 2-3 inches (51-76mm) from module c2 r load scope +vout ?vout
spm15 series single output potted metal package isolated 15-watt dc-dc converters mdc_spm15.c01 page 35 of 36 www.murata-ps.com/support enter current limiting. if the power is exceeded for an extended period, the con- verter may overheat and encounter overtemperature shut down. caution: be careful of external electrical noise. the trim input is a senstive input to the converters feedback control loop. excessive electrical noise may cause instability or oscillation. keep external connections short to the trim input. use shielding if needed. trim equations trim up trim down where vo = desired output voltage. adjustment accuracy is subject to resis- tor tolerances and factory-adjusted output accuracy. mount trim resistor close to converter. use short leads. remote on/off control on the input side, a remote on/off control can be speci? ed with either positive or negative logic as follows: positive: models equipped with positive logic are enabled when the on/off pin is left open or is pulled high to +15v dc with respect to Cv in . an internal bias current causes the open pin to rise to +v in . positive-logic devices are disabled when the on/off is grounded or brought to within a low voltage (see speci? ca- tions) with respect to Cv in . negative: models with negative logic are on (enabled) when the on/off is grounded or brought to within a low voltage (see speci? cations) with respect to Cv in . the device is off (disabled) when the on/off is left open or is pulled high to +15v dc max. with respect to Cv in . dynamic control of the on/off function should be able to sink the speci? ed signal current when brought low and withstand speci? ed voltage when brought high. be aware too that there is a ? nite time in milliseconds (see speci? cations) between the time of on/off control activation and stable, regulated output. this time will vary slightly with output load type and current and input conditions. there are two cautions for the on/off control: caution: while it is possible to control the on/off with external logic if you carefully observe the voltage levels, the preferred circuit is either an open drain/open collector transistor or a relay (which can thereupon be controlled by logic). the on/off prefers to be set at approx. +15v (open pin) for the on state, assuming positive logic. caution: do not apply voltages to the on/off pin when there is no input power voltage. otherwise the converter may be permanently damaged. figure 3. trim adjustments to decrease output voltage using a fixed resistor load r trim down +vout trim on/off control ?vin ?vout +vin SPM15-120-Q12, q48 spm15-050-q12, q48 C 2050 v o C 5 12775 C 2050 5 C v o 5110 x (vo C2.5) r t up () = r t down () = v o C 12 C 5110 25000 C 5110 12 C v o 10000 (vo-2.5) r t up () = r t down () = spm15-150-q12, q48 v o C 15 C 5110 25000 C 5110 15 C v o 10000 (vo-2.5) r t up () = r t down () = v o C 3.3 C 2050 12775 r t down () = r t up () = C 2050 3.3 C v o 5110 (vo - 2.5) spm15-033-q12, q48 figure 4. trim adjustments to increase output voltage using a fixed resistor +vout trim on/off control ?vin load r trim up ?vout +vin figure 5. driving the on/off control pin (suggested circuit) on/off control -vin +vcc
spm15 series single output potted metal package isolated 15-watt dc-dc converters mdc_spm15.c01 page 36 of 36 www.murata-ps.com/support murata power solutions, inc. makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. the descriptions contained her ein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. speci? cations are subject to cha nge without notice. ? 2014 murata power solutions, inc. murata power solutions, inc. 11 cabot boulevard, mans? eld, ma 02048-1151 u.s.a. iso 9001 and 14001 registered this product is subject to the following operating requirements and the life and safety critical application sales policy : refer to: http://www.murata-ps.com/requirements/ soldering guidelines murata power solutions recommends the speci? cations below when installing these converters. these speci? cations vary dependin g on the solder type. exceeding these speci? ca- tions may cause damage to the product. be cautious when there is high atmospheric humidity. we strongly recommend a mild pre-ba ke (100 c. for 30 minutes). your production environment may differ; therefore please thoroughly review these guidelines with your process engineers. wave solder operations for through-hole mounted products (thmt) for sn/ag/cu based solders: for sn/pb based solders: maximum preheat temperature 115 c. maximum preheat temperature 105 c. maximum pot temperature 270 c. maximum pot temperature 250 c. maximum solder dwell time 7 seconds maximum solder dwell time 6 seconds figure 6. vertical wind tunnel ir video camera ir transparent optical window variable speed fan heating element ambient temperature sensor air?ow collimator precision low-rate anemometer 3 below uut unit under test (uut) vertical wind tunnel murata power solutions employs a computer controlled custom-designed closed loop vertical wind tunnel, infrared video camera system, and test instrumentation for accurate air? ow and heat dissipation analysis of power products. the system includes a precision low ? ow-rate anemometer, variable speed fan, power supply input and load controls, temperature gauges, and adjustable heating element. the ir camera monitors the thermal performance of the unit under test (uut) under static steady-state conditions. a special optical port is used which is transparent to infrared wavelengths. both through-hole and surface mount converters are soldered down to a 10? x10? host carrier board for realistic heat absorption and spreading. both longitudinal and trans- verse air? ow studies are possible by rotation of this carrier board since there are often signi? cant differences in the heat dissipation in the two air? ow directions. the combination of adjustable air? ow, adjustable ambient heat, and adjustable input/output currents and voltages mean that a very wide range of measurement conditions can be studied. the collimator reduces the amount of turbulence adjacent to the uut by minimizing air? ow turbulence. such turbu- lence in? uences the effective heat transfer characteristics and gives false readings. excess turbulence removes more heat from some surfaces and less heat from others, possibly causing uneven overheating. both sides of the uut are studied since there are different thermal gradients on each side. the adjustable heating element and fan, built-in temperature gauges, and no-contact ir camera mean that power supplies are tested in real-world conditions.

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