wrb-y wrb-y wrb-y wrb-y wrb-y wrb-y wrb-y wrb-y m m m m m m m m d-20w d-20w d-20w d-20w d-20w d-20w d-20w d-20w series series http://www.microdc.cn technical enquiries-email:tech@microdc.cn tel:0086-20-86000646 page 1 of 2 selection selection selection selection selection selection selection selection guide guide guide guide guide guide guide guide order watt input voltage output voltage output current full load efficiency capacitor load ( outpu t) (vdc) (vdc) (ma) (%) (uf) wrb1203ymd-4500 14.85 9-18 3.3 4500 85 2000 wrb1205ymd-20w 20 9-18 5 4000 89 2000 wrb1212ymd-20w 20 9-18 12 1660 88 470 wrb1215ymd-20w 20 9-18 15 1330 88 330 wrb2403ymd-4500 14.85 18-36 3.3 4500 86 2000 wrb2405ymd-20w 20 18-36 5 4000 89 2000 wrb2412ymd-20w 20 18-36 12 1660 89 470 WRB2415YMD-20W 20 18-36 15 1330 89 330 wrb4803ymd-4500 14.85 36-72 3.3 4500 84 2000 wrb4805ymd-20w 20 36-72 5 4000 88 2000 wrb4812ymd-20w 20 36-72 12 1660 89 470 wrb4815ymd-20w 20 36-72 15 1330 89 330 model model model model model model model model selection selection selection selection selection selection selection selection w w w w w w w w rb rb rb rb rb rb rb rb 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 d d d d d d d d - - - - - - - - 20 20 20 20 20 20 20 20 w w w w w w w w (4000) (4000) (4000) (4000) (4000) (4000) (4000) (4000) product series input voltage output voltage wide ( 2 :1) input range package style rated power (output current) microdc reserves the copyright input input input input specifications specifications specifications specifications voltage range 2:1 wide input (see table) input filter l-c type output output output output specifications specifications specifications specifications voltage accuracy 2 % short circuit protection current limit (automatic recovery) over power protection over 120% of rating (automatic recovery) over voltage protection zener diode clamp line regulation (ll-hl) 0.5 %, typ. load regulation (10% - 100%) 1 %, typ. ripple 75 - 100 mv pk-pk, max. noise 100 C 125 mv, max. temperature coefficient 0.02% / , max. general general general general specifications specifications specifications specifications efficiency see table i/o isolation voltage (3 sec.) 1500 vdc i/o isolation resistance 10 8 ohms switching frequency 300 - 450 khz, typ. humidity 95% rel h reliability calculated mtbf (mil-hdbk-217f) > 0.8 mhrs physical physical physical physical specifications specifications specifications specifications case material six-side shielded alu (non conductive base) weight ~ 15 g, typ. environment environment environment environment specifications specifications specifications specifications operating temperature -40 to +50 c (for 100% - see derating graph) maximum case temperature 105 storage temperature -55 to +105 cooling free air convection (10mm distance required) rohs conform soldering 260 , max. (1.5mm from case 10s.) w w w w ide ide ide ide i i i i nput nput nput nput ,i ,i ,i ,i solated solated solated solated & & & & r r r r egulated egulated egulated egulated single single single 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% 1"x1" d ip package wide temperature performance at full 20 watt load,-40 c to 85 c ul 94v-0 package material no heat sink required low ripple and good emc features industry standard pin out regulated single output 1500 vdc i/o isolation short circuit protection( automatic recovery ) metal case package mtbf>1000000 hours description description description description description description description description the wrb_ymd-20w 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 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.
wrb-y wrb-y wrb-y wrb-y wrb-y wrb-y wrb-y wrb-y m m m m m m m m d-20w d-20w d-20w d-20w d-20w d-20w d-20w d-20w series series http://www.microdc.cn technical enquiries-email:tech@microdc.cn tel:0086-20-86000646 page 2 of 2 package package package package package package package package / / / / / / / / pinning pinning pinning pinning pinning pinning pinning pinning / / / / / / / / derating derating derating derating derating derating derating derating recommended recommended recommended recommended recommended recommended recommended recommended footprint footprint footprint footprint footprint footprint footprint footprint single output recommended footprint top view,grid:2.54mm(0.1inch) diameter:1.00mm(0.039inch) 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: 19pcs l=220mm[8.661inch] tube quantity: 7pcs when the environment temperature is higher than 71 c, the product output ower should be less then 60% of the rated power. no parallel connection or plug and play. use dual output simultaneously, forbid opening output pin (0v) to use as single output. microdc professional power module,inc. tel:0086-20-86000646 e-mail:tech@microdc.cn website:http://www.microdc.cn rohs rohs rohs rohs compliant compliant compliant compliant information information information information this series is compatible with rohs soldering systems with a peak wave solder temperature of 300 c for 10 seconds. the pin termination finish on the sip package type is tin plate, hot dipped over matte tin with nickel preplate. the dip types are matte tin over nickel preplate. both types in this series are backward compatible with sn/pb soldering systems. reach reach reach reach compliant compliant compliant compliant information information information information this series has proven that this product does not contain harmful chemicals, it also has harmful chemical substances through the registration, inspection and approval. mechanical mechanical mechanical mechanical mechanical mechanical mechanical mechanical dimensions dimensions dimensions dimensions dimensions dimensions dimensions dimensions note: unit:mm[inch] pin section tolerances: 0.10mm[ 0.004inch] general tolerances: 0.25mm[ 0.010inch] temperature temperature temperature temperature temperature temperature temperature temperature derating derating derating derating derating derating derating derating curve curve curve curve curve curve curve curve pin pin pin pin pin pin pin pin connection connection connection connection connection connection connection connection # single 1 gnd 2 + vin 3 +vout 4 nc 5 0 v output noise: the output noise is measured with 0.1 f tantalum capacitor.
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