wra wra wra wra wra wra wra wra - - - - - - - - y y y y y y y y md md md md md md md md - - - - - - - - 10 10 10 10 10 10 10 10 w w w w w w w w wrb wrb wrb wrb wrb wrb wrb wrb - - - - - - - - y y y y y y y y md md md md md md md md - - - - - - - - 10 10 10 10 10 10 10 10 w w w w w w w w series series http://www.microdc.cn technical enquiries-email:tech@microdc.cn tel:0086-20-86000646 page 1 of 3 selection selection selection selection selection selection selection selection guide guide guide guide guide guide guide guide order code input output efficiency (%,typ) voltage(vdc) current(ma) voltage (vdc) nominal range max* max min wra0505 ym d- 10 w 5 4.5-9.0 11 1000 10 0 5 75 wra050 9ym d- 10 w 5 4.5-9.0 11 556 56 9 76 wra0512 ym d- 10 w 5 4.5-9.0 11 416 42 12 80 wra0515 ym d- 10 w 5 4.5-9.0 11 333 33 15 82 wrb0505 ym d- 10 w 5 4.5-9.0 11 2000 200 5 76 wrb050 9ym d- 10 w 5 4.5-9.0 11 1111 111 9 78 wrb0512 ym d- 10 w 5 4.5-9.0 11 833 83 12 80 wrb0515 ym d- 10 w 5 4.5-9.0 11 666 66 15 82 wra1205 ym d- 10 w 12 9.0-18.0 20 1000 100 5 79 wra120 9ym d- 10 w 12 9.0-18.0 20 556 56 9 84 wra1212 ym d- 10 w 12 9.0-18.0 20 416 42 12 82 wra1215 ym d- 10 w 12 9.0-18.0 20 333 33 15 84 wrb120 3ym d- 10 w 12 9.0-18.0 20 2500 250 3.3 79 wrb1205 ym d- 10 w 12 9.0-18.0 20 2000 200 5 79 wrb120 9ym d- 10 w 12 9.0-18.0 20 1111 111 9 81 wrb1212 ym d- 10 w 12 9.0-18.0 20 833 83 12 82 wrb1215 ym d- 10 w 12 9.0-18.0 20 666 66 15 84 wrb1224 ym d- 10 w 12 9.0-18.0 20 416 42 24 82 wra2405 ym d- 10 w 24 18.0-36.0 40 1000 100 5 81 wra240 9ym d- 10 w 24 18.0-36.0 40 556 56 9 79 wra2412 ym d- 10 w 24 18.0-36.0 40 416 42 12 84 wra2415 ym d- 10 w 24 18.0-36.0 40 333 33 15 86 wrb2403 ym d- 10 w 24 18.0-36.0 40 2 500 250 3.3 78 wrb2405 ym d- 10 w 24 18.0-36.0 40 20 00 200 5 80 wrb240 9ym d- 10 w 24 18.0-36.0 40 1111 111 9 78 wrb2412 ym d- 10 w 24 18.0-36.0 40 833 83 12 84 wrb2415 ym d- 10 w 24 18.0-36.0 40 666 66 15 86 wra4805 ym d- 10 w 48 36.0-72.0 80 1000 10 0 5 80 wra480 9ym d- 10 w 48 36.0-72.0 80 556 56 9 80 wra4812 ym d- 10 w 48 36.0-72.0 80 416 42 12 84 wra4815 ym d- 10 w 48 36.0-72.0 80 333 33 15 85 wrb4803 ym d- 10 w 48 36.0-72.0 80 2 500 2 50 3.3 78 wrb4805 ym d- 10 w 48 36.0-72.0 80 20 00 200 5 80 wrb480 9ym d- 10 w 48 36.0-72.0 80 1111 111 9 80 wrb4812 ym d- 10 w 48 36.0-72.0 80 833 83 12 84 wrb481 5ym d- 10 w 48 36.0-72.0 80 666 66 15 86 *input voltage can't exceed this value,or will cause the permanent damage. model model model model model model model model selection selection selection selection selection selection selection selection wr wr wr wr wr wr wr wr b b b b b b b b 24 24 24 24 24 24 24 24 05 05 05 05 05 05 05 05 y y y y y y y y m m m m m m m m d d d d d d d d - - - - - - - - 10 10 10 10 10 10 10 10 w w w w w w w w product series input voltage output voltage wide ( 2 :1) input range metal shield dip package style rated power 2:1 2:1 2:1 2:1 wide wide wide wide input,isolated®ulated input,isolated®ulated input,isolated®ulated input,isolated®ulated 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 rohs compliant efficiency up to 86% d ip package wide temperature performance at full 10 watt load,-40 c to 85 c ul 94v-0 package material no heatsink required industry standard pinout i/o isolation 1500vdc short circuit protection( automatic recovery ) metal shielding package mtbf>1000000 hours description description description description description description description description the wra_ ym d- 10 w & wrb_ ym d- 10 w series are specially designed for applications where a group of polar 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 power 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 output output output output output output output output specifications specifications specifications specifications specifications specifications specifications specifications parameter parameter parameter parameter test test test test conditions conditions conditions conditions min. min. min. min. typ. typ. typ. typ. max. max. max. max. units units units units output power refer to products program 1 10 w positive voltage accuracy refer to recommended circuit 1.0 3.0 % negative voltage accuracy refer to recommended circuit 3.0 5.0 % load regulation from 10% to 100% full load 0.5 1.0 * % line regulation(at full load) input voltage from low to high 0.2 0.5 % temperature drift(vout) refer to recommended circuit 0.03 %/ c output ripple** 20mhz bandwidth 2 0 50 mv p-p output noise** 20mhz bandwidth 85 150 mv p-p switching frequency 100% full load,input voltage range 300 khz * dual output models unbalanced load (25/100%): 5%max * *test ripple and noise by "parallel cable" method. see detailed operation instructions at testing of power converter section, application notes.
wra wra wra wra wra wra wra wra - - - - - - - - y y y y y y y y md md md md md md md md - - - - - - - - 10 10 10 10 10 10 10 10 w w w w w w w w wrb wrb wrb wrb wrb wrb wrb wrb - - - - - - - - y y y y y y y y md md md md md md md md - - - - - - - - 10 10 10 10 10 10 10 10 w w w w w w w w series series http://www.microdc.cn technical enquiries-email:tech@microdc.cn tel:0086-20-86000646 page 2 of 3 temperature temperature temperature temperature temperature temperature temperature temperature characteristics characteristics characteristics characteristics characteristics characteristics characteristics characteristics parameter parameter parameter parameter conditions conditions conditions conditions min. min. min. min. typ. typ. typ. typ. max. max. max. max. units units units units storage humidity range 95 % no-load power consumption 500 mw operating temperature -40 85 c storage temperature -55 125 c lead temperature 1.5mm from case for 10 seconds 30 0 c temp.rise at full load 40 c cooling free air convection case material plastic(ul94-v0) short circuit protection * continuous,automatic recovery case material aluminium alloy mtbf 10 00 k hours weight 23.5 g *supply voltage must be discontinued at the end of short circuit duration. isolation isolation isolation isolation isolation isolation isolation isolation specifications specifications specifications specifications specifications specifications specifications specifications parameter parameter parameter parameter test test test test conditions conditions conditions conditions min. min. min. min. typ. typ. typ. typ. max. max. max. max. units units units units isolation test voltage flash tested for 1 minute and 1ma max 1500 vdc isolation resistance test at viso=500vdc 1000 m isolation capacitance input/outpu 100 pf application application application application application application application application note note note note note note note note 1) 1) 1) 1) requirement requirement requirement requirement on on on on output output output output load load load load in order to ensure the product operate efficiently and reliably, in addition to a max load (namely full load), a minimum load is specified for this kind of dc/dc converter. make sure the specified range of input voltage is not exceeded, the minimum output load no less than 10% load. if the actual load is less than the specified minimum load, the output ripple may increase sharply while its efficiency and reliability will reduce greatly. if the actual output power is very small, please add an appropriate resistor as extra loading, or contact our company for other lower output power products. 2) 2) 2) 2) recommended recommended recommended recommended circuit circuit circuit circuit all the wra_ ym d- 10 w & wrb_ ymd - 10 w series have been tested according to the following recommended testing circuit before leaving factory. this series should be tested under load. never be tested under no load (see figure 1). if you want to further decrease the input/output ripple,you can increase capacitance properly or choose capacitors with low esr. however, the capacitance of the output filter capacitor must be proper. if the capacitance is too big, a startup problem might arise. for every channel of output,provided the safe and reliable operation is ensured,the greatest capacitance of its filter capacitor sees (table 1). general: cin: 5v&12v 100 f 24v&48v 10 f-47 f cout: 10pf/100ma 3) 3) 3) 3) input input input input current current current current when it is used in unregulated power supply,be sure that the fluctuating range of the power supply and the rippled voltage do not exceed the module standard.input current of power supply should afford the startup current of this kind of dc/dc module (figure 2). general: ip 1.4*iin-max 4) 4) 4) 4) 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 typical typical typical typical typical typical typical typical characteristics characteristics characteristics characteristics characteristics characteristics characteristics characteristics temperature temperature temperature temperature derating derating derating derating graph graph graph graph recommended recommended recommended recommended recommended recommended recommended recommended circuit circuit circuit circuit circuit circuit circuit circuit output output output output graph graph graph graph external external external external capacitor capacitor capacitor capacitor table table table table (table (table (table (table 1) 1) 1) 1) single single single single single single single single vout vout vout vout vout vout vout vout cout cout cout cout cout cout cout cout dual dual dual dual dual dual dual dual vout vout vout vout vout vout vout vout cout cout cout cout cout cout cout cout (vdc) (vdc) (vdc) (vdc) ( ( ( ( f) f) f) f) (vdc) (vdc) (vdc) (vdc) ( ( ( ( f) f) f) f) 3.3 2200 5 680 5 1000 12 330 12 470 1 5 220 15 330 _ _ 24 220 _ _
wra wra wra wra wra wra wra wra - - - - - - - - y y y y y y y y md md md md md md md md - - - - - - - - 10 10 10 10 10 10 10 10 w w w w w w w w wrb wrb wrb wrb wrb wrb wrb wrb - - - - - - - - y y y y y y y y md md md md md md md md - - - - - - - - 10 10 10 10 10 10 10 10 w w w w w w w w 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 tolerances: 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 gnd gnd 2 vin vin 3 +vo +vo 4 n c com 5 0v -vo nc:no connection footprint footprint footprint footprint footprint footprint footprint footprint details details details details details details details details 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. use use use use dual dual dual dual output output output output simultaneously,forbid simultaneously,forbid simultaneously,forbid simultaneously,forbid pening pening pening pening output output output output pin pin pin pin (0v) (0v) (0v) (0v) to to to to use use use use as as as as single single single single output. output. output. output. 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: 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. note: unit :mm[inch] general tolerances: 0.50mm[ 0.020inch] l= 230 mm[ 9.055 inch] tube quantity: 7 pcs
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