wra wra wra wra wra wra wra wra - - - - - - - - ys-3w ys-3w ys-3w ys-3w ys-3w ys-3w ys-3w ys-3w wrb wrb wrb wrb wrb wrb wrb wrb - - - - - - - - ys ys ys ys ys ys ys ys -3w -3w -3w -3w -3w -3w -3w -3w series series http://www.microdc.cn technical enquiries-email:tech@microdc.cn tel:0086-20-86000646 page 1 of 3 order code input output efficiency (%.typ.) voltage(vdc) voltage (vdc) current(ma) nominal range max. wr b05 0 3 y s -3w 5 4.5 - 9 3.3 700 76 wr b0505 y s -3w 5 4.5 - 9 5 600 81 wr b0512 y s -3w 5 4.5 - 9 12 250 83 wrb 051 5y s -3w 5 4.5 - 9 15 200 76 wr a0505 y s -3w 5 4.5 - 9 5 300 81 wr a0512 y s -3w 5 4.5 - 9 12 125 81 wra 0515 y s -3w 5 4.5 - 9 15 100 76 wr b12 0 3 y s -3w 12 9 - 18 3.3 700 81 wr b1205 y s -3w 12 9 - 18 5 600 83 wr b1212 y s -3w 12 9 - 18 12 250 74 wrb 121 5y s -3w 12 9 - 18 15 200 76 wr a1205 y s -3w 12 9 - 18 5 300 81 wr a1212 y s -3w 12 9 - 18 12 125 81 wra 1215 y s -3w 12 9 - 18 15 100 76 wr b24 0 3 y s -3w 24 18 -36 3.3 700 81 wr b2405 y s -3w 24 18 -36 5 600 83 wr b2412 y s -3w 24 18 -36 12 250 74 wrb 241 5y s -3w 24 18 -36 15 200 76 wr a2405 y s -3w 24 18 -36 5 300 81 wr a2412 y s -3w 24 18 -36 12 125 81 wra 2415 y s -3w 24 18 -36 15 100 85 wr b48 0 3 y s -3w 48 36 -7 5 3.3 700 83 wr b4805 y s -3w 48 36 -7 5 5 600 85 wr b4812 y s -3w 48 36 -7 5 12 250 74 wrb 481 5y s -3w 48 36 -7 5 15 200 78 wr a4805 y s -3w 48 36 -7 5 5 300 80 wr a4812 y s -3w 48 36 -7 5 12 125 80 wra 4815 y s -3w 48 36 -7 5 15 100 85 note: case material : non-conductive plastic weight : 4.8g (0.17oz) model model model model model model model model selection selection selection selection selection selection selection selection wrb wrb wrb wrb wrb wrb wrb wrb 24 24 24 24 24 24 24 24 12 12 12 12 12 12 12 12 y y y y y y y y s s s s s s s s - - - - - - - - 3w 3w 3w 3w 3w 3w 3w 3w product series input voltage output voltage wide ( 2 :1) input range sip package style rated power 3 3 3 3 w, w, w, w, wide wide wide wide input, input, input, input, isolated isolated isolated isolated & & & & regulated regulated regulated regulated dual/single dual/single dual/single dual/single output output output output dc dc dc dc - - - - dc dc dc dc converter converter converter converter features features features features features features features features wide ( 2 :1) input range s hort circuit protection (automatic recovery) 1500vdc isolation operating temperature: -40 70 small footprint ultra-compact sip-8 package d internal smd construction remote on/off control excellent load and line regulation applications applications applications applications applications applications applications applications the wra_ ys - 3 w&wrb_ ys - 3 w series are specially designed for applications where a wide range input voltage power supplies are isolated from the input power supply in a distributed power supply system on a circuit board . these products apply to: 1) where the voltage of the input p ower supply is wide range (voltage range 2:1); 2) where isolation is necessary between input and output (isolation voltage 1500vdc); 3) where the regulation of the output voltage and the output ripple noise are demanded. microdc reserves the copyright selection selection selection selection selection selection selection selection guide guide guide guide guide guide guide guide input input input input input input input input specifications specifications specifications specifications specifications specifications specifications specifications parameter conditions max. input current at full load (nominal input voltage) 4.5 C 9 vin models: 820 ma max. 9- C 18 vin models: 330 ma max. 18 C 36 vin models: 170 ma max. 36 C 75 vin models: 85 ma max. surge voltage (100 msec. max.) 4.5 C 9 vin models: 15 v max. 9- C 18 vin models: 36 v max. 18 C 36 vin models: 50 v max. 36 C 75 vin models: 100 v max. input voltage variation (dv/dt) 5 v/ms, max. (complies with ets300 132 part 4.4) input filter capacitor type (see application note for compliance to en 55022 class a/b) start up time < 1ms at nominal input and resistive load
wra wra wra wra wra wra wra wra - - - - - - - - ys-3w ys-3w ys-3w ys-3w ys-3w ys-3w ys-3w ys-3w wrb wrb wrb wrb wrb wrb wrb wrb - - - - - - - - ys ys ys ys ys ys ys ys -3w -3w -3w -3w -3w -3w -3w -3w series series http://www.microdc.cn technical enquiries-email:tech@microdc.cn tel:0086-20-86000646 page 2 of 3 parameter parameter parameter parameter conditions conditions conditions conditions voltage set accuracy 1 % max regulation C input variation vin min. to vin max. 0.2 % max. C load variation 5 C 100% single output models: 0.5 % max. dual output models: 1.0 % max. balanced load C load variation 0 C 100% single output models: 1.0 % max. dual output models: 1.0 % max. balanced load C load cross regulation 25/100% 5.0 % max. (dual output models) minimum load 0% of rated max. load temperature coefficient 0.1 %/k ripple and noise (20 mhz bandwidth) 75 mvpk-pk max. start up time C power on 30 ms typ. (constant resistive load) C remote on 30 ms typ. transient response setting time (25% load step change) 500 s typ temperature coefficient 0.1 %/ c short circuit protection continuous, automatic recovery capacitive load 3.3 vdc / 5 vdc output models: 1 760 f max. / 1 000 f max. 12 vdc / 15 vdc output models: 170 f max. / 110 f max. 5 vdc / 15 vdc output models: 470 f max. / 100 f max. 15 vdc output models: 47 f max . output output output output output output output output specifications specifications specifications specifications specifications specifications specifications specifications all all all all specifcations specifcations specifcations specifcations valid valid valid valid at at at at nominal nominal nominal nominal input input input input voltage, voltage, voltage, voltage, full full full full load load load load and and and and +25 +25 +25 +25 c c c c after after after after warm-up warm-up warm-up warm-up time time time time unless unless unless unless otherwise otherwise otherwise otherwise stated. stated. stated. stated. parameter parameter parameter parameter conditions conditions conditions conditions temperature ranges C operating C 40 c ... + 70 c (no derating) C case temperature +100 c max. C storage C 55 c ... + 125 c load derating 3.5 %/k above 70 c humidity (non condensing) 95 % rel. h max. reliability, calculated mtbf (mil-hdbk-217f ground benign) >2.4 mio h @ 25 c isolation voltage (60 sec) C input/output 1 500 vdc isolation capacity C input/output 1000 pf max. isolation resistance C input/output (500 vdc) >10 gohm switching frequency 100 khz (pwm) remote on/off C on: open or high impedance C off: 2...4 ma current applied via 1kohm resisto r C off stand by input current 2.5 ma max. case materi general general general general general general general general specifications specifications specifications specifications specifications specifications specifications specifications
wra wra wra wra wra wra wra wra - - - - - - - - ys-3w ys-3w ys-3w ys-3w ys-3w ys-3w ys-3w ys-3w wrb wrb wrb wrb wrb wrb wrb wrb - - - - - - - - ys ys ys ys ys ys ys ys -3w -3w -3w -3w -3w -3w -3w -3w series series http://www.microdc.cn technical enquiries-email:tech@microdc.cn tel:0086-20-86000646 page 3 of 3 note: unit:mm[inch] pin section toleranc e s: 0.10mm[ 0.004inch] general tolerances: 0.25mm[ 0.010inch] outline outline outline outline outline outline outline outline dimensions dimensions dimensions dimensions dimensions dimensions dimensions dimensions footprint footprint footprint footprint footprint footprint footprint footprint details details details details details details details details mechanical mechanical mechanical mechanical mechanical mechanical mechanical mechanical dimensions dimensions dimensions dimensions dimensions dimensions dimensions dimensions recommended recommended recommended recommended recommended recommended recommended recommended footprint footprint footprint footprint footprint footprint footprint footprint recommended footprint top view grid:2.54mm(0.1inch) diameter:1.00mm(0.039inch) pin single dual 1 -vin(gnd) -vin(gnd) 2 +vin(vcc) +vin(vcc) 3 remote on/off remote on/off 5 no function no function 6 +vout +vout 7 -vout common 8 no function -vout n ote:specifications can be changed any time without notice. footprint footprint footprint footprint footprint footprint footprint footprint details details details details details details details details note: 1. the load shouldn't be less than 10%, otherwise ripple will increase dramatically. 2. operation under 10% load will not damage the converter; however, they may not meet all specification listed. 3. all specifications measured at ta=25 c, humidity<75%, nominal input voltage and rated output load unless otherwise specified. 4. in this datasheet, all the test methods of indications are based on corporate standards. 5. only typical models listed, other models may be different, please contact our technical person for more details. tube tube tube tube tube tube tube tube outline outline outline outline outline outline outline outline dimensions dimensions dimensions dimensions dimensions dimensions dimensions dimensions note: unit :mm[inch] general tolerances: 0.50mm[ 0.020inch] l=530mm[20.866inch] tube quantity: 22 pcs l=220mm[8.661inch] tube quantity: 8 pcs when when when when the the the the environment environment environment environment temperature temperature temperature temperature is is is is higher higher higher higher than than than than 71 71 71 71 , , , , the the the the product product product product output output output output power power power power should should should should be be be be less less less less then then then then 60% 60% 60% 60% of of of of the the the the rated rated rated rated power. power. power. power. no no no no parallel parallel parallel parallel connection connection connection connection or or or or plug plug plug plug and and and and play. play. play. play.
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