specification model dc voltage rated current current range note.6 rated power output voltage adj. range setup, rise time hold up time (typ.) voltage range frequency range efficiency (typ.) ac current (typ.) input inrush current (typ.) leakage current safety standards working temp. working humidity storage temp., humidity temp. coefficient vibration mtbf dimension others note packing overload 500ms, 30ms/230vac 1200ms, 30ms/115vac at full load 50ms/230vac 10ms/115vac at full load 85 ~ 264vac 120 ~ 370vdc 47 ~ 63hz 1.5a/115vac 0.9a/230vac cold start 45a <2ma / 240vac 110 ~ 150% rated output power compliance to en55022 (cispr22) class b -20 ~ +60 (refer to output load derating curve) 20 ~ 90% rh non-condensing -40 ~ +85 , 10 ~ 95% rh 0.03%/ (0 ~ 45 ) 10 ~ 500hz, 2g 10min./1cycle, period for 60min. each along x, y, z axes 381.3k hrs min. mil-hdbk-217f (25 ) 159*97*38mm (l*w*h) file name:NED-75-spec 2006-12-27 0.52kg; 30pcs/16.6kg/0.97cuft over voltage harmonic current ems immunity compliance to en61000-3-2,-3 compliance to en61000-4-2, 3, 4, 5, 6, 8,11, env50204, en55024, en61000 -6-1 light industry level, criteria a 75w dual output switching power supply universal ac input / full range protections: short circuit / overload / over voltage cooling by free air convection 100% full load burn-in test 2 years warranty features : n e d - 7 5 s e r i e s ripple & noise (max.) note.2 voltage tolerance note.3 emi conduction & radiation environment safety & emc (note 7) protection withstand voltage isolation resistance i/p-o/p:3kvac i/p-fg:1.5kvac o/p-fg:0.5kvac i/p-o/p, i/p-fg, o/p-fg:100m ohms/500vdc 1. all parameters not specially mentioned are measured at 230vac input, r ated load and 25 of ambient temperature. 2. ripple & noise are measured at 20mhz of bandwidth by using a 12" twisted pair- wire terminated with a 0.1uf & 47uf parallel capacitor. 3. tolerance : includes set up tolerance, line regulation and load regula tion. 4. line regulation is measured from low line to high line at rated load. 5. load regulation is measured from 20% to 100% rated load, and other output at 6 0% rated load. 6. each output can work within current range. but total output power can't ex ceed rated output power. 7. the power supply is considered a component which will be installed into a fi nal equipment. the final equipment must be re-confirmed that it still mee ts emc directives. protection type : hiccup mode, recovers automatically after fault co ndition is removed protection type : shut down o/p voltage, re-power on to recover NED-75a 5v 7a 1 ~ 8a 71w 80mvp-p ch1: 4.75 ~ 5.5v 2.0% 0.5% 1.5% ch1: 5.75 ~ 6.75v 78% NED-75b 12v ch2 24v ch2 5v ch1 3a 2a 5a 0.3 ~ 4a 0.2 ~ 3a 1 ~ 6a 73w 120mvp-p 200mvp-p 80mvp-p ch1: 4.75 ~ 5.5v 6.0% 6.0% 1.0% 1.0% 3.0% 3.0% 2.0% 0.5% 1.5% 81% line regulation note.4 load regulation note.5 ch1 output number ul60950-1, cb(iec60950-1) approved
mechanical specification file name:NED-75-spec 2006-12-27 block diagram circuit detection o.l.p. emi filter rectifiers & filter power switch- filter filter & & rectifiers rectifiers +v1 +v2 com i/p fg ing control o.v.p. output derating vs input voltage input voltage (vac) 60hz 85 100 95 120 115 160 140 200 180 240 220 264 load (%) ta=25 90 100 80 70 60 50 40 ambient temperature ( ) load (%) -20 0 20 10 30 40 20 40 80 60 100 60 50 70 fosc : 60khz case no. 901 unit:mm +v adj. 4.5 9 152.5 7 2-m3 150 6.5 78 24 159 22 117 9 56 7 4 3 2 1 28.5 3-m3 38 terminal pin. no assignment pin no. pin no. 12 5 34 67 assignment assignment dc output +v2 dc output com dc output +v1 fg dc output com ac/l ac/n 65 3.5 9.5 8.2 97 84.5 3.5 3.5 18 3.5 18.5 (horizontal) derating curve 75w dual output switching power supply n e d - 7 5 s e r i e s
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