specification 5 watts ? 2:1 input range ? optional 4:1 input range ? isolated outputs ? efficiency to 82% ? fully regulated outputs ? optional 3 kvdc isolation ? ul approved versions wt series input input voltage range ? 12 v (9-18 or 9-36 vdc - a version) 24 v (18-36 or 18-72 vdc - a version) 48 v (36-72 vdc) input current (no load) ? see table input filter ? pi network undervoltage lockout ? turn on > 65% nominal input turn off < 63% nominal input output output v oltage ? see tables output voltage balance ? ?% max, dual output models initial set accuracy ? ?% max star t up rise time ? 3 ms max line regulation ? ?.5% max from high line to low line load regulation ? ?.5% max for 10--00% load change for single output models, ?.0% max for 25--00% load change for dual output models cross regulation ? ?.2% on dual output models transient response ? <1.0% max deviation, recovering within 200 ? for a 50% load change ripple & noise ? 100 or 1.0% pk-pk, whichever is greater, 20mhz bw short circuit protection ? continuous with auto recovery temperature ? ?.05 /?max coef ficient xppower.com general ef ficiency ? see table isolation ? 500 vdc input to output (1000 m /80 pf) optional high isolation version, 3000 vdc input to output, add suffix ? switching frequency ? 100 khz typical mtbf ? 1,000 khrs to mil-hdbk-217f environmental operating temperature ? -25 o to +70 ?o(see derating curve) case t emperature ? +95 o max storage temperature ? -40 o to +100 ? emc & safety emissions ? en55022, level a conducted en55022, level a radiated 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 safety ? ul1950 (for xu versions only) d c - d c
wt series 11-nov-05 mechanical details d c - d c models and ratings input voltage (1,2,4) output voltage output current input current (6) efficiency model number (3) no load full load 9-18 vdc 3.3 vdc 1000 ma 7.5 ma 393 ma 70% wt200 5.0 vdc 1000 ma 7.5 ma 545 ma 76% wt201 1 2.0 vdc 4 70 ma 7 .5 ma 5 85 ma 8 0% w t202 15.0 vdc 400 ma 7.5 ma 625 ma 80% wt203 ?.0 vdc ?00 ma 12.0 ma 545 ma 76% wt204 ?2.0 vdc ?30 ma 12.0 ma 575 ma 80% wt205 ?5.0 vdc ?90 ma 12.0 ma 590 ma 80% wt206 18-36 vdc 3.3 vdc 1000 ma 5.0 ma 197 ma 70% wt300 5.0 vdc 1000 ma 5.0 ma 265 ma 78% wt301 12.0 vdc 470 ma 5.0 ma 285 ma 82% wt302 15.0 vdc 400 ma 5.0 ma 305 ma 82% wt303 ?.0 vdc ?00 ma 7.5 ma 265 ma 78% wt304 ?2.0 vdc ?30 ma 7.5 ma 285 ma 81% wt305 ?5.0 vdc ?90 ma 7.5 ma 295 ma 81% wt306 36-72 vdc 3.3 vdc 1000 ma 2.0 ma 98 ma 70% wt400 5 .0 vdc 1 000 ma 2 .0 ma 1 33 ma 7 8% w t401 12.0 vdc 470 ma 2.0 ma 145 ma 81% wt402 15.0 vdc 400 ma 2.0 ma 154 ma 81% WT403 ?.0 vdc ?00 ma 3.0 ma 133 ma 78% wt404 ?2.0 vdc ?30 ma 3.0 ma 142 ma 81% wt405 ?5.0 vdc ?90 ma 3.0 ma 147 ma 81% wt406 notes 1. nominal input voltage 12, 24 or 48 vdc. 2. for optional 4:1 input range: 9-36 vdc: add suffix to wt2xx model number, 20-72 vdc: add suffix to wt3xx model number. 3. for 3000 vdc isolation add suffix ?o model number. 4. for ul1950 approval, add suffix u?o model number. ul approved product is only available with 3000 vdc isolation and option ?inout. 5. ?r ?uvesions are not available with optional 4:1 input range. 6. input current is at nominal input voltage. pin connections pin single output dual output 1 +v input +v input 2 n/c -v output 3 n/c common 9 no pin no pin 10 -v output common 11 +v output +v output 12 -v input -v input 13 -v input -v input 14 +v output +v output 15 -v output common 16 no pin no pin 22 n/c common 23 n/c -v output 24 +v input +v input option ? ?upi connections pin single output dual output 1 no pin no pin 2 -v input -v input 3 -v input -v input 9 n/c common 10 n/c n/c 11 n/c -v output 12 no pin no pin 13 no pin no pin 14 +v output +v output 15 n/c n/c 16 -v output common 22 +v input +v input 23 +v input +v input 24 no pin no pin all dimensions ar e in inches (mm) w eight: 0.06 lbs (25 g) appr ox. derating curve 0.02 (0.5 ) 0.08 ( 2.0 ) 0.10 (2.5 ) 1.25 (31. 8) 0.5 (12. 7) max 0.15 (3.8 ) 24 23 22 1 23 9 10 11 12 16 15 14 13 0.60 ( 15. 2) 0.80 ( 20. 3) bot tom view -20 -10 0 10 20 30 40 50 60 70 80 90 100 20 40 60 80 100 ambient temperature (o) l o a d ( % ) 0
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