wra wra wra wra wra wra wra wra - - - - - - - - zs-3w zs-3w zs-3w zs-3w zs-3w zs-3w zs-3w zs-3w wrb wrb wrb wrb wrb wrb wrb wrb - - - - - - - - zs zs zs zs zs zs zs zs -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. wrb2403zs-3w 24 9-36 3.3 700 81 wrb2405zs-3w 24 9-36 5 600 83 wrb2412zs-3w 24 9-36 12 250 74 wrb2415zs-3w 24 9-36 15 200 76 wra2405zs-3w 24 9-36 5 300 81 wra2412zs-3w 24 9-36 12 125 81 wra2415zs-3w 24 9-36 15 100 85 wrb4803zs-3w 48 18-75 3.3 700 83 wrb4805zs-3w 48 18-75 5 600 85 wrb4812zs-3w 48 18-75 12 250 74 wrb4815zs-3w 48 18-75 15 200 78 wra4805zs-3w 48 18-75 5 300 80 wra4812zs-3w 48 18-75 12 125 80 wra4815zs-3w 48 18-75 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 z z z z z z z z s s s s s s s s - - - - - - - - 3w 3w 3w 3w 3w 3w 3w 3w product series input voltage output voltage wide ( 4 :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 ( 4 :1) input range s hort circuit protection (automatic recovery) 1500vdc isolation operating temperature: -40 85 excellent load and line regulation ultra-compact sip-8 package d internal smd construction remote on/off control small footprint:21.8*9.2mm excellent load and line regulation applications applications applications applications applications applications applications applications the wra_ zs - 3 w&wrb_ zs - 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 4:1); 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 24 vin models: 170 mamax. 48 vin models: 85 mamax. surge voltage (100 msec. max.) 24 vin models: 50v max. 48 vin models: 100v max. input current at no load 24 vin models: 25ma typ. 48 vin models: 15ma typ. input filter en 55022 level a, fcc part 15, level a with external capacitor the the the the WR-ZS-3W WR-ZS-3W WR-ZS-3W WR-ZS-3W series series series series is is is is a a a a new new new new family family family family of of of of isolated isolated isolated isolated 3w 3w 3w 3w dc/dc dc/dc dc/dc dc/dc converters converters converters converters with with with with regu- regu- regu- regu- lated lated lated lated output, output, output, output, featuring featuring featuring featuring ultra-wide ultra-wide ultra-wide ultra-wide 4:1 4:1 4:1 4:1 input input input input voltage voltage voltage voltage range. range. range. range. the the the the product product product product comes comes comes comes in in in in a a a a ultra-compact ultra-compact ultra-compact ultra-compact sip sip sip sip plastic plastic plastic plastic package package package package with with with with a a a a small small small small footprint footprint footprint footprint occupying occupying occupying occupying only only only only 2.0 2.0 2.0 2.0 cm2 cm2 cm2 cm2 (0.3 (0.3 (0.3 (0.3 square square square square in.) in.) in.) in.) of of of of board board board board space. space. space. space. an an an an excellent excellent excellent excellent effciency effciency effciency effciency allows allows allows allows C C C C 40 40 40 40 to to to to +85 +85 +85 +85 c c c c operation operation operation operation temperatures. temperatures. temperatures. temperatures. further further further further features features features features include include include include remote remote remote remote on/off on/off on/off on/off control control control control and and and and continuous continuous continuous continuous short short short short circuit circuit circuit circuit protec- protec- protec- protec- tion. tion. tion. tion. the the the the very very very very compact compact compact compact dimensions dimensions dimensions dimensions of of of of these these these these converters converters converters converters make make make make them them them them an an an an ideal ideal ideal ideal solution solution solution solution for for for for many many many many space space space space critical critical critical critical applications applications applications applications in in in in battery-powered battery-powered battery-powered battery-powered equipment equipment equipment equipment and and and and instrumen- instrumen- instrumen- instrumen- tation. tation. tation. tation.
wra wra wra wra wra wra wra wra - - - - - - - - zs-3w zs-3w zs-3w zs-3w zs-3w zs-3w zs-3w zs-3w wrb wrb wrb wrb wrb wrb wrb wrb - - - - - - - - zs zs zs zs zs zs zs zs -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: 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 not required temperature coefficient 0.1 %/k ripple and noise (20 mhz bandwidth) 30 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 output models: 1 760 f max. 5 vdc output models: 1 000 f max. 12 vdc output models: 170 f max. 15 vdc output models: 110 f max. 5 vdc output models: 470 f max. 12 vdc output models: 100 f max. 15 vdc output models: 47 f max. casematerial 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 + 85 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) > 1.7 mio h @ 25 c isolation voltage (60 sec) C input/output 1 500 vdc isolation capacity C input/output 2 00 pf max. isolation resistance C input/output (500 vdc) >1 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. vibration and thermal shock mil-std-810e safety standards ul /cul 60950-1, en 60950-1, iec 60950-1 safety approvals C ul/cul pending 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 - - - - - - - - zs-3w zs-3w zs-3w zs-3w zs-3w zs-3w zs-3w zs-3w wrb wrb wrb wrb wrb wrb wrb wrb - - - - - - - - zs zs zs zs zs zs zs zs -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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