141 1-800-526-2324 ? www.us.tdk-lambda.com/lp/ disclaimer: us.tdk-lambda.com/lp/legal.htm ieh series features ? standard eighth brick footprint ? 36-75, 38-55vdc inputs ? 9.6v, 10.2v, 10.8v or 12v nominal outputs ? through hole mounting ? 2250vdc basic isolation ? digital adaptive control for fast transient response ? high operating ef ciency (up to 95.5%) ? constant switching frequency ? baseplate cooled ? parallel operation (9.6v & 10.2v models) 300-317w eighth brick converter model ieh nominal output voltage vdc 9.6 10.2 10.8 12 input voltage range vdc 45-55 38-55 36-75 36-75* ripple & noise (max) (pk-pk) (1) mv 90 175 150 120 line regulation (max) mv 40 40 50 60 load regulation (max) mv - - 100 60 overload protection threshold (3) a 40.5 35 36 29.5 overvoltage protection (typ) (2) vdc 12.1 12.3 13.1 14.8 overtemperature protection (3) - yes remote on / off - negative logic temperature (operating) c -40 to 125 -40 to 125 -40 to 124 -40 to 130 temperature (storage) c -55 to 125 -55 to 125 -55 to 125 -55 to 125 humidity (operating) %rh 20-95% rh non condensing humidity (storage) %rh 10-95% rh non condensing cooling - conduction, convection or forced air (see detailed datasheet for derating) isolation voltage vdc 2250vdc input to output, 1500vdc input to baseplate vibration (non operating) - 5-50hz @ 0.5g (4.9m/s 2 ), and 50-500hz @ 1.5g (14.7m/s 2 ) per bellcore tr-eop-000063-5.4.4 shock - 196.1m/s 2 safety agency approvals - ul60950 (us and canada), cb scheme iec 60950-1 (2nd edition) am1, ce mark en 60950-1/a12 weight (max) g 50 size mm/in. 50.42 x 22.86 x 12.70 / 2.02 x 0.9 x 0.49 warranty yrs 3 years speci cations *when operating below 40v input, the module will operate, but load regulation may be out of speci cation. (1) see website for detailed specifcation and test methods. (2) latching (3) non-latching key market segments & applications
142 1-800-526-2324 ? www.us.tdk-lambda.com/lp/ revision p1.7: apr 2014 ieh series for additional information, please visit us.tdk-lambda.com/lp/products/ieh-series.htm pin function pin function 1 vin (+) 5 none 2 on / off 6 none 3 vin (-) 7 none 4 vo (-) 8 vo (+) outline drawing pinout input output droop max. max. output base ef ciency at pin model voltage (v) voltage (v) share curr. (a) power (w) plate full load (%) length (in) IEH4N033A096V-1D9-R 45-55 9.6 yes 33 317 yes 95.5 0.19 ieh4n030a102v-1d9-r 38-55 10.2 yes 30 306 yes 94 0.19 ieh48028a108v-109-r 36-75 10.8 no 28 302 yes 94 0.19 ieh48025a120v-109-r 36-75 12 no 25 300 yes 94.6 0.19 model selector preferred model
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