e ez34 e vde recognized znr a transient/surge absorbers series: w type: d n featurest l series w, type d is recognized znr transient surge absorbers according to cecc by vde. l series w, type d can apply to equipment which need to have ce marking, conform to eu directive (machinery, electromagnetic compatibility and low voltage directive etc.). l series w, type d fit surge immunity test (iec1000-4-5/en61000-4-5 etc.). n recommended applications l surge protection in equipment which need to have ce marking. n explanation of part numbers n precautions for handling (see page 36 to 38) znr a transient/surge absorbers, series w (type d) e r z w nominal varistor voltage * element size lead configuration e r z w nominal varistor voltage taping/packaging element size lead configuration related standard vde/cecc42201 title surge suppression varistors certification number 5912 n related standard and certification number ] 9 series' standard products are taping style. (bulk) (taping)
e ez35 e znr a transient/surge absorbers, series w (type d) n rating and charcteristics (an outline) maximum peak current (a) at. 8/20 m s, 1time element size code 11 clamping voltage ]] (v) (max.) element size code 11 erzw 11 d820 erzw 11 d101 erzw 11 d121 erzw 11 d151 erzw 11 d201 erzw 11 d221 erzw 11 d241 erzw 11 d271 erzw 11 d331 erzw 11 d361 erzw 11 d391 erzw 11 d431 erzw 11 d471 erzw 11 d511 erzw 11 d621 erzw 11 d681 erzw 11 d751 erzw 11 d821 erzw 11 d911 erzw 11 d102 erzw 11 d112 erzw 11 d182 v1ma (v) ] 82 ( 74e 90) 100 ( 90e 110) 120 ( 108e 132) 150 ( 135e 165) 200 ( 185e 225) 220 ( 198e 242) 240 ( 216e 264) 270 ( 247e 303) 330 ( 297e 363) 360 ( 324e 396) 390 ( 351e 429) 430 ( 387e 473) 470 ( 423e 517) 510 ( 459e 561) 620 ( 558e 682) 680 ( 612e 748) 750 ( 675e 825) 820 ( 738e 902) 910 ( 819e 1001) 1000 ( 900e 1100) 1100 ( 990e 1210) 1800 ( 1700e 1980) acrms (v) 50 60 70 95 130 140 150 175 210 230 250 275 300 320 385 420 460 510 550 625 680 1000 dc (v) 65 85 100 125 170 180 200 225 270 300 320 350 385 410 505 560 615 670 745 825 895 1465 05 145 175 210 260 355 380 415 475 570 620 675 745 810 ? ? ? ? ? ? ? ? ? 07,09 135 165 200 250 340 360 395 455 545 595 650 710 775 845 ? ? ? ? ? ? ? ? 10,14,20 135 165 200 250 340 360 395 455 545 595 650 710 775 845 1025 1120 1240 1355 1500 1650 1815 2970 05 800 800 800 800 800 800 800 800 800 800 800 800 800 ? ? ? ? ? ? ? ? ? 07 1750 1750 1750 1750 1750 1750 1750 1750 1750 1750 1750 1750 1750 1750 ? ? ? ? ? ? ? ? 09 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 ? ? ? ? ? ? ? ? 10 3500 3500 3500 3500 3500 3500 3500 3500 3500 3500 3500 3500 3500 3500 3500 3500 3500 3500 3500 3500 3500 3500 14 6000 6000 6000 6000 6000 6000 6000 6000 6000 6000 6000 6000 6000 6000 5000 5000 5000 5000 5000 5000 5000 5000 20 10000 10000 10000 10000 10000 10000 10000 10000 10000 10000 10000 10000 10000 10000 7500 7500 7500 7500 7500 7500 7500 7500 part number varistor voltage maximum allowable voltage n detail specification detail specifications of ratings and characteristics, dimensions, lead style, taping etc. are the same of series v. see page 15 to 28 as substitute part number of w series for part number of v series as follows. part number of w series part number of v series erzw 111111 c erzv 111111 n notes l vde recognized znr a transient/surge absorbers (series w, type d) are order production. l ordering unit quantity is 1000 pcs per part number. (500 pcs for erzw20d182) 11 : element size code ] element size code 05:v 0.1ma (v) ]] 05:v 5a 07:v 10a 09:v 25a 10:v 25a 14:v 50a 20:v 100a
e ez36 e znr a transient/surge absorbers, series v, type d znr a transient/surge absorbers, series w, type d znr a transient/surge absorbers, type cf and sf (smd) precautions for handling the znr transient/surge absorbers (hereafter referred to as the znr varistors) may fail in a short-circuit mode or in an open-circuit mode, when subjected to severe conditions of electrical, environmental and/or me- chanical stresses beyond their specified ratings and specified conditions, resulting in burnout, flaming or glowing in the worst case. following precautions for safety and application notes shall be taken in your major consideration. if you have a question about the precautions for handling, please contact our engineering section or factory. 1. precautions for safety 1.1 operating conditions 1.1.1 the znr varistors shall not be operated beyond the specified ratings and environmental conditions in the catalog or the specifications to prevent them from deterioration, breakdown, flaming or glowing. l the znr varistors shall not be operated exceeding the specified maximum allowable voltage in the catalog or the specification. l the znr varistors shall not be subjected to energy levels above their specified maximum energy ratings in the catalog or the specifications. l in case of application to repeated surge/ overvoltages, the znr varistors shall not be subjected to surge currents and energy levels above the specified maximum ratings in impulse life rating in the catalog or the specifications. l when surge/overvoltages are intermittently applied to the znr varistors with short durations, the devices shall not be operated beyond the specified rated power in the catalog or the specifications. l the znr varistors shall not be operated beyond the specified operating temperature range in the catalog or the specifications. l it is recommended that the znr varistors, if not fused, shall be located away from other combustibe components. 1.1.2 the znr varistor shall be operated correctly under following conditions to prevent varistors from causing mechanical damages and ruptures and to protect human from serious injuries; l the znr varistors shall not be operated exceeding the specified maximum allowable voltage ratings in the catalog. l the znr varistors shall not be operated beyond the maximum peak current ratings in the catalog. l some safety countermeasure such as a protective case covering the varistor is recommended, if necessary. 1.1. 3 when the znr varistors are applied to between a live part and a metallic chassis of equipment, fol- lowing safety countermeasures shall be taken to protect human from electric shock. a) the metallic chassis shall be earthed to the ground. b) the live part shall be equipped with a protective cover for preventing electric shock. 2.application notes 2.1 protective devices for varistors 2.1.1 the znr varistors shall be protected from serious accidents due to unexpected physical phenomenor by following safety countermeasures. l in case of across-the line use, the znr varistors shall be protected by connecting a ground fault circuit interrupter of fusing in series to the devices. (see table 1) l in case of line to ground use, the short-circuit of the varistor may not blow the current type fuse due to the grounding resistance (between line and ground), which may cause flaming or burnout of the devices in the worst case. following safety countermeasures (a or b) are recommended; a) connecting a leakage current circuit breaker in series to the varistor to be protected. (see table 1) b) use current type fuses and a thermal type fuse which are thermally coupled each others. (see table 1) znr transient/surge absorbors, series v, (type d), series w, (type d), type cf/type sf
e ez37 e znr nominal part number of znr line voltage type d type cf/sf erz @ 11 d201 erz oo 1mk201 ac 100 v erz @ 11 d221 erz oo 1mk221 erz @ 11 d241 erz oo1 mk241 znr1 erz @ 11 d271 ] erz oo1 mk271 ] erz @ 11 d241 erz oo 1mk241 ac 120 v erz @ 11 d271 erz oo 1mk271 erz @ 11 d331 ] ?? ac 200 v erz @ 11 d471 erz oo 1mk471 znr3 ac 220 v erz @ 11 d471 erz oo 1mk471 ac 240 v erz @ 11 d511 ?? ac 380 v erz @ d821 ?? selection examples table 1. (line protection) across-the-line/line to line protection dc ac single phase line to line and line to ground protection dc ac single phase connections ac three phase ac three phase application examples across the line use/line to line line to ground use 2.2 circuit design 1 (selection of varistor voltage rating) 2.2.1 general precautions in selection of varistor voltage ratings for line protection, following general precautions shall be taken in your consideration; (1)maximum operating voltage shall be lower than the specified maximum allowable voltage of the varistor applied. (2)some reasonable margin is required against fluctuation of the primary ac line voltage where the varistor is applied for preventing mechanical and/or electrical failures of the device. 2.2.2 across-the-line use (line to line surge protection) l select the znr varistors recommended in table 1. notes: because the primary line voltage temporarily rises due to load unbalance of separately wired loads, short circuit between the live line and the nutral line or lc resonance at switching for a capacitive load, znr varistors with ] are recommended for ac120 v or 240 v applications. (see table 1) 2.2.3 line to ground use (line to ground surge protection) l select the znr varistors recommended in table 1. notes: when 500 v insulation resistance test of the circuits employing znr varistor is conducted, the znr varistor shall be removed after getting approval from the customer, or the znr varistor ] ] with the maximum allowable voltage exceeding to the test voltage shall be applied. (see table 1) when ac1000 v or 1200 v dielectric with standing test is conducted, znr varistors shall be removed after getting approval from the customer according to the relevant regulations, or znr varistor ] ] ] with the maximum allowable voltage exceeding to the test voltage shall be applied. (see table 1) notes: 1. @ : v for series v and w for series w 2. 11 : element size; 05, 07, 09, 10, 14, or 20 3.. : element size; 10, 14 or 20 4. oo : cf for type cf or sf for type sf znr nominal part number of znr line voltage type d type cf/sf erz @ 11 d471 erz oo 1mk471 ac 100 v erz @ 11 d511 ?? ac 220 v erz @ d821 ]] or ?? znr2 higher varistor voltage erz @ d182 ]]] ?? erz @ 11 d511 ?? ac 230 v erz @ d821 ]] or ?? ac 240 v higher varistor voltage znr4 erz @ d182 ]]] ?? erz @ d112 ]] or ?? ac 380 v higher varistor voltage erz @ d182 ]]] ?? znr transient/surge absorbors, series v, (type d), series w, (type d), type cf/type sf
e ez38 e 2.3 circuit design 2 (fusing varistors) 2.3.1 fusing the znr varistors l for varistor protection, it is recommended to select suitable fuses in table 2. l the recommended fuse locations are shown in table 1. table 2. part no. recommended fuse ] ratings erzv05d 111 3 a max. erzv07d 111 5 a max. erzv14d 111 10 a max. erzv20d 111 10 a max. erzv09d 111 erzv10d 111 7 a max. part no. recommended fuse ] ratings erzcf1m 111 3 a max. erzsf1mk 111 5 a max. notes: ] the voltage rating of fuse shall be appropriate to the circuit applied. ]] in application to csa safety standard, the rating of applicable fuse shall conform to csa class 2221 01. 2.3.2 when a line current of equipment is higher than the recommended current rating of the fuse in table 2, the location of the fuse shall be arranged according to fig 2. 2.4 environmental conditions (1)the znr varistors shall not be exposed outdoors, because of being designed for indoors use. (2)the znr varistors shall not be operated beyond the specified operating temperature range and shall not be exposed to direct sunlight and heating part of equipment. (3)the znr varistors shall not be operated under severe conditions of high temperatures and high humidities such as places exposed to rain, wind and vapor. (4)the znr varistors shall be free from dust, salty wind and atomospheres polluted by corrosive gas. 2.5 precautions for assemblies and handlings 2.5.1 solvent cleaning organic solvents such as thinner and acetone etc. shall not be applied to the znr varistors for preventing deterioration of the external coating or molding resin. 2.5.2 abnormal mechanical stresses abnormal mechanical stresses beyond the specified values such as strong falling shocks, ribrations and bending/pulling forces, shall be kept minimum to prevent mechanical/electrical failures of the devices. 2.5.3 plastic molding if another plastic molding is applied to the znr varistors on your option, the influences on reliability of the znr varistors shall be carefully investigated in your equipment. fig. 2 alternative fuse location/placement for varistor protection 2.5.4 soldering conditions in soldering of the znr varistors, the soldering conditions shall conform to the each individual specification of the device for prevent mechanical/ electrical failures. 2.6 long term storage (1)the znr varistors shall not be stored under severe conditions of high temperatures and high humidities. store them indoors under 40 ?c max. and 75 %rh max. use them within one year, if stored beyond the limit, check the solderbility before use. (2)the znr varistors shall not be stored under corrosive atomospheres such as hydrogen sulfide, sulfurous acid, chlorine and ammonia. (3)the znr varistors shall not be exposed to direct sunlight and shall not be stored under dew formation. 2.7 regarding to safety regulations of the varistors in case of applications to ul and csa standards, refer to application notes for ul and csa recog- nized znr varistors 2.8 parallel capacitances of the znr varistors the znr varistors have relatively high capacitances specified in the individual specifications, special consideration shall be taken into account in applications to high frequency transmission lines or circuits. znr transient/surge absorbors, series v, (type d), series w, (type d), type cf/type sf
e ez39 e design, specifications are subject to change without notice. ask factory for technical specifications before purchase and/or use. whenever a doubt about safety arises from this product, please inform us immediately for technical consultation without fail. test methods/description unless otherwise specified, electrical measurements (initial/after tests) shall be conducted at temperature of 5 to 35 ?c, relative hu- midity of 45 to 85 % and atmospheric pressure of 860 to 1060 hpa. the voltage betwen two terminals with the specified measuring current c ma dc applied is called v c or v cma . the measurement shall be made as fast as possible to avoid heat affection. the maximum sinusoidal rms voltage or maximum dc voltage that can be applied continuously in the specified operating temperature range. the maximum voltage between two terminals with the specified standard impulse current (8/20 s) illustrated below applied. the power that can be applied in the specified ambient temperature. the maximum energy within the varistor voltage change of 10 % when a single impulse current of 2 ms or 10/1000 s is applied. the maximum current within the varistor voltage change of 10 % when a standard impulse current of 8/20 s is applied two times with an interval of 5 minutes. the maximum current within the varistor voltage change of 10 % with a single standard impulse current of 8/20 s is applied. capacitance shall be measured at 1 khz 10 %, 1 vrms max. (1 mhz 10 % below 100 pf), 0 v bias and 202 ?c. the specified voltage shall be applied between both terminals of the specimen connected together and metal foil closely wrapped round its body for 1 minute. the change of v c shall be measured after the impulse current listed below is applied 10000 or 100000 times continuously with the interval of 10 seconds at room temperature. n performance characteristics (series v, type d) item impulse life (i) impulse life (ii) cycles 10 4 times 10 5 times part no. current impulse current erzv05d180 to erzv05d680 8 a (8/20 s) 5 a (8/20 s) erzv07d180 to erzv07d680 25 a (8/20 s) 15 a (8/20 s) erzva9d180 to erzva9d680 50 a (8/20 s) 35 a (8/20 s) erzv10d180 to erzv10d680 50 a (8/20 s) 35 a (8/20 s) erzv14d180 to erzv14d680 90 a (8/20 s) 50 a (8/20 s) erzv20d180 to erzv20d680 130 a (8/20 s) 65 a (8/20 s) erzv05d820 to erzv05d471 40 a (8/20 s) 25 a (8/20 s) erzv07d820 to erzv07d511 100 a (8/20 s) 60 a (8/20 s) erzva9d820 to erzva9d511 125 a (8/20 s) 75 a (8/20 s) erzv10d820 to erzv10d112 150 a (8/20 s) 85 a (8/20 s) erzv10d182 120 a (8/20 s) 75 a (8/20 s) erzv14d820 to erzv14d112 200 a (8/20 s) 110 a (8/20 s) erzv14d182 150 a (8/20 s) 90 a (8/20 s) erzv20d820 to erzv20d112 250 a (8/20 s) 120 a (8/20 s) erzv20d182 200 a (8/20 s) 100 a (8/20 s) classification (nominal varistor voltage) test voltage (ac) v 0.1 ma , v 1ma < 330 v 1000 vrms v 0.1 ma , v 1ma > 330 v 1500 vrms 2 times 1 time v cma at 85 ?c e v cma at 25 ?c 1 100 (%/?c) v cma at 25 ?c 60 electrical znr a transient/surge absorbers, series v (type d) 100 90 50 10 0 current (%) time 20 s 8s specifications ??? to meet the specified value. 0 to e0.05 %/?c max. to meet the specified value no breakdown ? v cma /v cma < 10 % characteristics standard test condition varistor voltage maximum allowable voltage clamping voltage rated power maximum energy maximum peak current (withstand- ing surge current) temperature coefficient of varistor voltage capacitance withstanding voltage (body insulation) impulse life
e ez40 e design, specifications are subject to change without notice. ask factory for technical specifications before purchase and/or use. whenever a doubt about safety arises from this product, please inform us immediately for technical consultation without fail. n performance characterisitcs (series v, type d) specifications no remarkable mechanical damage d v cma /v cma < 5 % no remarkable mechanical damage d v cma /v cma < 5 % d v cma /v cma < 5 % d v cma /v cma < 5 % no remarkable mechanical damage d v cma /v cma < 10 % d v cma /v cma < 10 % d v cma /v cma <5% characteristics robustness of terminations (tensile) robustness of terminations (bending) vibration solderability resistance to soldering heat high temperature storage/ dry heat humidity (steady state) temperature cycle high temperature load/ dry heat load damp heat load/ humidity load low temperature storage/cold test methods after gradually applying the force specified below and keeping the unit fixed for 10 seconds, the terminal shall be visually examined for any damage. terminal diameter force f 0.6 mm, f 0.8 mm 9.8 n (1.0 kgf) f 1.0 mm 19.6 n (2.0 kgf) the unit shall be secured with its terminal kept vertical and the force specified below shall be applied in the axial direction. the terminal shall gradually be bent by 90 ? in one direction, then 90 ? in the opposite direction, and again back to the original position. the damage of the terminal shall be visually examined. terminal diameter force f 0.6 mm, f 0.8 mm 4.9 n (0.5 kgf) f 1.0 mm 9.8 n (1.0 kgf) after repeadly applying a single harmonic vibration (amplitude: 0.75 mm, double amplitude: 1.5 mm) with 1 minute vibration frequency cycles (10 hz to 55 hz to 10 hz) to each of three perpendicular direc- tions for 2 hours. thereafter, the unit shall be visually examined. after dipping the terminals to a depth of approximately 3 mm from the body in a soldering bath of 2355 ?c for 20.5 seconds, the terminal shall be visually examined. after each lead shall be dipped into a solder bath having a temperature of 2605 ?c to a point 2.0 to 2.5 mm from the body of the unit, using shielding board (t=1.5 mm), be held there for 101 s (5 series: 51 s) and then be stored at room temperature and normal humidity for 1 to 2 hours. the change of v cma and mechanical damages shall be examined. the specimen shall be subjected to 1252 ?c for 1000 hours in a thermostatic bath without load and then stored at room temperature and normal humidity for 1 to 2 hours. thereafter, the change of v cma shall be measured. the specimen shall be subjected to 402 ?c, 90 to 95 % rh for 1000 hours without load and then stored at room temperature and normal hu- midity for 1 to 2 hours. thereafter, the change of v cma shall be measured. the temperature cycle shown below shall be repeated five cycles and then stored at room temperature and normal humidity for 1 to 2 hours. the change of v cma and mechanical damage shall be examined. after being continuously applied the maximum allowable voltage at 852 ?c for 1000 hours, the specimen shall be stored at room tem- perature and normal humidity for 1 to 2 hours. thereafter, the change of v cma shall be measured. the specimen shall be subjected to 402 ?c, 90 to 95 % rh and the maximum allowable voltage for 1000 hours and then stored at room temperature and normal humidity for 1 to 2 hours. thereafter, the change of v cma shall be measured. the specimen shall be subjected to e402 ?c without load for 1000 hours and then stored at room temperature and normal humidity for 1 to 2 hours. thereafter, the change of v cma shall be measured. approximately 95 % of the termainals shall be covered with new solder uniformly. mechanical environmental znr a transient/surge absorbers, series v (type d) step temperature (?c) period (minutes) 1 e403 303 2 room temperature 153 3 1252 303 4 room temperature 153
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