dc-dc converter WDD20 series 15 ~ 20w chinfa electronics ind., co. ltd. iso 9001 certified www.chinfa.com sales@chinfa.com WDD20 ? 03 s 1 model list model no. input voltage output wattage output voltage output current eff. (typ.) eff. (min.) case single output models WDD20 - 03s1 9~18 vdc 15 watts +3.3 vdc 4500 ma 80% 77% ff WDD20 - 05s1 9~18 vdc 20 watts + 5 vdc 4000 ma 83% 81% ff WDD20 - 12s1 9~18 vdc 20 watts + 12 vdc 1670 ma 86% 84% ff WDD20 - 15s1 9~18 vdc 20 watts + 15 vdc 1330 ma 87% 85% ff WDD20 - 03s2 18~36 vdc 15 watts +3.3 vdc 4500 ma 80% 78% ff WDD20 - 05s2 18~36 vdc 20 watts + 5 vdc 4000 ma 85% 83% ff WDD20 - 12s2 18~36 vdc 20 watts + 12 vdc 1670 ma 86% 84% ff WDD20 - 15s2 18~36 vdc 20 watts + 15 vdc 1330 ma 88% 86% ff WDD20 - 03s3 36~72 vdc 15 watts +3.3 vdc 4500 ma 80% 78% ff WDD20 - 05s3 36~72 vdc 20 watts + 5 vdc 4000 ma 85% 83% ff WDD20 - 12s3 36~72 vdc 20 watts + 12 vdc 1670 ma 87% 85% ff WDD20 - 15s3 36~72 vdc 20 watts + 15 vdc 1330 ma 88% 86% ff dual output models WDD20 - 12d1 9~18 vdc 20 watts 12 vdc 830 ma 85% 83% ff WDD20 - 15d1 9~18 vdc 20 watts 15 vdc 670 ma 87% 85% ff WDD20 - 12d2 18~36 vdc 20 watts 12 vdc 830 ma 87% 85% ff WDD20 - 15d2 18~36 vdc 20 watts 15 vdc 670 ma 88% 86% ff WDD20 - 12d3 36~72 vdc 20 watts 12 vdc 830 ma 87% 85% ff WDD20 - 15d3 36~72 vdc 20 watts 15 vdc 670 ma 89% 87% ff features * low cost * 2:1 wide input range * i/o isolation * input pi filter * short circuit protection * high performance * 2 years warranty description the WDD20 series are 15 watts and 20 watts single & dual output dc/dc converters, 2:1 wide input range with i/o isolation and short circuit protection features makes it suitable used on variable applications with low cost. all WDD20 models contain pi input filter to minimize reflected ripple & noise. all models are packaged in 2? x 1.6? x 0.4? black coated metal case, and pcb mountable directly. 03 : 3.3v out 05 : 5v out 12 : 12v out 15 : 15v out wattage s : single output d : dual output 1: 9~18v in 2: 18~36v in 3: 36~72v in
dc-dc converter WDD20 series 15 ~ 20w chinfa electronics ind., co. ltd. iso 9001 certified www.chinfa.com sales@chinfa.com specification all specifications typical at nominal line, full load, 25 unless otherwise noticed general specification * switching frequency: ......................... * isolation voltage: .............................. * isolation re sistance: .......................... * operating ambient temperature: ......... * storage temp erature: ........................ * max. case te mperature: ..................... * m.t.b.f.: .......................................... * cooling: ........................................... * temperature co efficient: .................... * dimension: ...................................... 180khz 1,500vdc 100m ? (min.) -25 to +71 -40 to +100 100 277,000hrs at @ gf40, according to mil-hdbk-217f free air convection 0.02% / 50.8 x 40.6 x 10.2mm input specifications * input voltage range / frequency: ........ * input filter: ....................................... * no load input current: ........................ * max. input voltage: ........................... * startup vo ltage: ................................. 9 ~ 18vdc for 12v 18 ~ 36vdc for 24v 36 ~ 72vdc for 48v pi type 20ma for 12v in 15ma for 24v in 10ma for 48v in 20vdc for 12v in 40vdc for 24v in 75vdc for 48v in 8.5vdc for 12v in 15vdc for 24v in 33vdc for 48v in output specifications * output voltage accuracy: ................... * minimum load: .................................. * line regulation: ................................ * load regulation: ............................... * ripple & noise: ................................. * efficiency: ........................................ * voltage trim range: ........................... * derating: ......................................... * case ma terial: .................................. 2% at vo_nom no load for single output models 10% at vo_nom for dual output models 1% at vo_nom 2% at vo_nom for single output models 5% at vo_nom for dual output models 150mv (max.) up to 89%, see model list vout x 10% vout x 5% for 3.3 vout see table 1 metal control and protection * remote on/off: ................................. * input re versed: ................................. * output short circuit: .......................... on : open or 8 ~ 10vdc off : -0.3 ~ 2vdc shunt diode use external fuse continuous
dc-dc converter WDD20 series 15 ~ 20w chinfa electronics ind., co. ltd. iso 9001 certified www.chinfa.com sales@chinfa.com 5 6 7 8 1 2 4 5.00 [0.20] dia 1.00 [0.04] bottom view 40.64 [1.60] 50.80 [2.00] 17.78 [0.70] 2.54 [0.10] 5.08 [0.20] 10.16 [0.40] 10.16 [0.40] 10.16 [0.40] 5.08 [0.20] 7.62 [0.30] 10.16 [0.40] 50.80 [2.00] 45.72 [1.80] 10.16 [0.4] mechanism & pin configuration mm [inch] physical characteristics pin assigment pin no. 1 2 4 5 6 7 8 single vi+ vi- s.d. no pin vo+ vo- trim dual vi+ vi- s.d. vo+ com vo- trim s.d. : remote on/off derating: [table 1] power out [%] 0 natural convection cooling 100 100 -25 ambient temperture [ ] 70 60 case size 50.8 x 40.6 x 10.2mm 2 x 1.6 x 0.4inches case material metal weight 60 g
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