dc-dc specification 10 watts 2:1 input range dip-24 metal package operating temperature -40 ? to +100 ? high efficiency up to 89% 1500 vdc isolation input pi filter continuous short circuit protection jcf10 series input input voltage range 24 v (18-36 vdc) 48 v (36-75 vdc) input current see table input filter pi network undervoltage lockout turn on >71% nominal input turn off <67% nominal input output output voltage see table minimum load none line regulation 0.2% load regulation 0.5% setpoint accuracy 1.0% ripple & noise 75 mv pk-pk, 20 mhz bw transient response 5% deviation recovery to within 1% in <500 ? for a 25% step load change temperature 0.05%/ c coefficient overvoltage protection on single output models only 2.5 v models: 3.9 v typical, 3.3 v models: 3.9 v typical, 5.0 v models: 6.2 v typical, 12.0 v models: 15.0 v typical overcurrent protection 110-140% short circuit protection trip & restart (hiccup mode), auto recovery xppower.com general efficiency see table isolation voltage 1500 vdc min switching frequency 380 khz typical mtbf 1,000 khrs min per mil-hdbk-217f environmental operating temperature -40 ? to +100 ? (see derating curve) case temperature +100 ? max storage temperature -40 ? to +125 ? cooling convection-cooled operating humidity up to 95% rh, non-condensing shock 30 g, half sine wave 18 ms pulse applied 3 times on each of 6 axes vibration 5-500 hz, 3 g, for 10 mins on each of 3 axes emc emissions en55022, level a conducted & radiated with external components (contact technical sales for details) esd immunity en61000-4-2, level 2 perf criteria a radiated immunity en61000-4-3, 3 v/m perf criteria a conducted immunity en61000-4-6, 3 v rms perf criteria a
17-apr-07 application notes jcf models and ratings derating curve mechanical details 0.6 (15.24) 0.8 (20.3) 1.25 (31.8) 0.40 (10.2) 0.15 (3.8) 0.20 (5.08) 0.60 (15.24) 0.10 (2.54) 0.18 (4.5) 23 22 16 14 2 3 9 11 bottom view all dimensions are in inches (mm) pin size: diameter 0.02 (0.50) tolerance: x.xx = ?.02 (x.xxx = ?.010) weight: 18.4 g (0.04 lbs) -3.33%/? for 5.0 v & 12.0 v models -2.86%/? for 2.5 v & 3.3 v models -40 -20 0 10 20 30 40 50 60 70 80 90 100 20 40 60 80 100 ambient temperature (?) load (%) 0 input voltage output voltage output current input current (1) efficiency model number no load full load 18-36 vdc 2.5 vdc 3.00 a 30 ma 368 ma 85% jcf1024s2v5 ^ 3.3 vdc 3.00 a 30 ma 480 ma 86% jcf1024s3v3 ^ 5.0 vdc 2.00 a 30 ma 475 ma 88% JCF1024S05 ^ 12.0 vdc 0.84 a 30 ma 470 ma 89% jcf1024s12 ^ 36-75 vdc 2.5 vdc 3.00 a 15 ma 185 ma 85% jcf1048s2v5 ^ 3.3 vdc 3.00 a 15 ma 240 ma 86% jcf1048s3v3 ^ 5.0 vdc 2.00 a 15 ma 240 ma 87% jcf1048s05 ^ 12.0 vdc 0.84 a 15 ma 235 ma 89% jcf1048s12 ^ pin connection pin function 2 -v input 3 -v input 9 no pin 11 nc 14 +v output 16 -v output 22 +v input 23 +v input ^ available from newark. see pages 207-208. notes 1. input current measured at nominal input voltage. dc-dc
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