wra-ymd-15w&wrb-ymd-15w wra-ymd-15w&wrb-ymd-15w wra-ymd-15w&wrb-ymd-15w wra-ymd-15w&wrb-ymd-15w wra-ymd-15w&wrb-ymd-15w wra-ymd-15w&wrb-ymd-15w wra-ymd-15w&wrb-ymd-15w wra-ymd-15w&wrb-ymd-15w s s eries eries http://www.microdc.cn technical enquiries-email:tech@microdc.cn tel:0086-20-86000646 page 1 of 3 order code input output efficiency (%) capacitor load max voltage (vdc) voltage (vdc) current (ma) nominal range max. * wra1205ymd-15w 12 9 -1 8 20 5 1500 82 1020 wra1212ymd-15w 12 9 -18 20 12 625 85 495 wra1215ymd-15w 12 9 -18 20 15 500 85 165 wrb1203ymd-4000 12 9 -18 20 3.3 4000 79 10500 wrb1205ymd-15w 12 9 -18 20 5 3000 82 4020 wrb1212ymd-15w 12 9 -18 20 12 1250 85 1035 wrb1215ymd-15w 12 9 -18 20 15 1000 84 705 wra2405ymd-15w 24 18 -36 40 5 1500 84 1020 wra2412ymd-15w 24 18 -36 40 12 625 86 495 wra2415ymd-15w 24 18 -36 40 15 500 86 165 wrb2403ymd-4000 24 18 -36 40 3.3 4000 80 10500 wrb2405ymd-15w 24 18 -36 40 5 3000 83 4020 WRB2412YMD-15W 24 18 -36 40 12 1250 85 1035 wrb2415ymd-15w 24 18 -36 40 15 1000 85 705 wra4805ymd-15w 48 36- 75 80 5 1500 85 1020 wra4812ymd-15w 48 36- 75 80 12 625 87 495 wra4815ymd-15w 48 36- 75 80 15 500 87 165 wrb4803ymd-4000 48 36- 75 80 3.3 4000 81 10500 wrb4805ymd-15w 48 36- 75 80 5 3000 83 4020 wrb4812ymd-15w 48 36- 75 80 12 1250 86 1035 wrb4815ymd-15w 48 36- 75 80 15 1000 86 705 *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 wrb wrb wrb wrb wrb wrb wrb wrb 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 - - - - - - - - 15 15 15 15 15 15 15 15 w w w w w w w w (3000) (3000) (3000) (3000) (3000) (3000) (3000) (3000) product series input voltage output voltage wide ( 2 :1) input range metal shield 2" 1" dip package rated power (output current) 15w, wide input, isolated®ulated single/dual outputdc-dc converter features features features features features features features features efficiency up to 87% wide (2:1)input range 1.5kvdc input/output isolation short circuit protection (automatic recovery) operating temperature: -40 c to+85 c internal smd construction metal shielding package industry standard pinout mtbf>1,000,000 hours rohs compliance applications applications applications applications applications applications applications applications selection selection selection selection selection selection selection selection guide guide guide guide guide guide guide guide the wra_ymd-15w & wrb_ymd-15w series offer 15w of output,the wra_ymd-15w&wrb_ymd-15w series with 2:1 wide input voltage of 9-18,18-36 and 36-75vdc and features 1500vdc isolation, short -circuit and over current protect ion,as well as six sided shielding. all models are particularly suited to tele-communications , industrial , test equipments power . output output output output output output output output specifica specifica specifica specifica specifica specifica specifica specifica tions tions tions tions tions tions tions tions parameter test conditions mi typ. max. units output voltage accuracy refer to recommended circuit 1 3 % load regulation from 10% to 100% load 0.5 1 % line regulation input voltage from low to high 0.2 0.5 % cross regulation(dual) 5 % ripple and noise 20mhz bandwidth 75 150 mv transient recovery time 25% load step change 200 300 us transient peak deviation 3 5 %vo over current protection input voltage range 120 130 150 % output short circuit input voltage range hiccup, automatic recovery trim 10%vo vdc temperature drift (vout) 0. 02 0. 03 %/ microdc microdc microdc microdc reserves reserves reserves reserves the the the the copyright copyright copyright copyright input input input input input input input input specifica specifica specifica specifica specifica specifica specifica specifica tions tions tions tions tions tions tions tions parameter test conditions min. typ. max. units start-up volt age 12 vin models 9 vdc 24 vin models 17.8 48 vin models 35.8 input filter l-c start-up time 10 ms
wra-ymd-15w&wrb-ymd-15w wra-ymd-15w&wrb-ymd-15w wra-ymd-15w&wrb-ymd-15w wra-ymd-15w&wrb-ymd-15w wra-ymd-15w&wrb-ymd-15w wra-ymd-15w&wrb-ymd-15w wra-ymd-15w&wrb-ymd-15w wra-ymd-15w&wrb-ymd-15w s s eries eries http://www.microdc.cn technical enquiries-email:tech@microdc.cn tel:0086-20-86000646 page 2 of 3 commontspecifica commontspecifica commontspecifica commontspecifica commontspecifica commontspecifica commontspecifica commontspecifica t t t t t t t t ions ions ions ions ions ions ions ions parameter test conditions min. typ. max units storage humidity 95 % operating temperature -40 85 c storage temperature -55 105 c temp. rise at full load case surface 50 c lead temperature 1.5mmfrom case for 10seconds 300 c isolation voltage tested f or 1 minute and 1ma max 1500 vdc isolation resistance test at 500vdc 1000 m isolation capacitance 100khz / 0.1v 1000 pf switching frequency nominal, full load 500 khz mtbf 1000 k hours cooling free air convection case material nickel-coat ed copper weight 30 g application application application application application application application application note note note note note note note note recommended recommended recommended recommended circuit circuit circuit circuit all the wra_ymd-15w&wrb_ymd-15w series have been tested according to the following recommended testing circuit before leaving factory . this series should be tested under load. never be test ed under no load (see figure 1). if you want to further decrease the output ripple, you can increase capacitance properly or choose capacitors with low esr. however, the capacitance can't exceed the maximum capacitor load in the list. recommended recommended recommended recommended capacitance capacitance capacitance capacitance to ensure these series can operate efficiently and reliably, the recommended capacitance of input and output sees the below table. derating derating derating derating derating derating derating derating & & & & & & & & efficiency efficiency efficiency efficiency efficiency efficiency efficiency efficiency curve curve curve curve curve curve curve curve 1. 1. 1. 1. temperature temperature temperature temperature derating derating derating derating curve curve curve curve 2. 2. 2. 2. efficiency efficiency efficiency efficiency vs vs vs vs input input input input voltage voltage voltage voltage wra2412ymd-15w wra2412ymd-15w wra2412ymd-15w wra2412ymd-15w efficiency vs input voltage 3. 3. 3. 3. efficiency efficiency efficiency efficiency vs vs vs vs output output output output power power power power wra2412ymd-15w wra2412ymd-15w wra2412ymd-15w wra2412ymd-15w efficiency vs output load output output output output output output output output voltage voltage voltage voltage voltage voltage voltage voltage trim trim trim trim trim trim trim trim up/down up/down up/down up/down up/down up/down up/down up/down
wra-ymd-15w&wrb-ymd-15w wra-ymd-15w&wrb-ymd-15w wra-ymd-15w&wrb-ymd-15w wra-ymd-15w&wrb-ymd-15w wra-ymd-15w&wrb-ymd-15w wra-ymd-15w&wrb-ymd-15w wra-ymd-15w&wrb-ymd-15w wra-ymd-15w&wrb-ymd-15w s s eries eries http://www.microdc.cn technical enquiries-email:tech@microdc.cn tel:0086-20-86000646 page 3 of 3 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 not e: unit : mm[inch] pi n diameter tolerances: 0.10mm[ 0.004 inch] general tolerances: 0.25mm[ 0.010 inch] recommended recommended recommended recommended recommended recommended recommended recommended footprint footprint footprint footprint footprint footprint footprint footprint microdc professional power module,inc. tel:0086-20-86000646 e-mail:tech@microdc.cn website:http://www.microdc.cn microdc professional power module,inc.makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. specifications are subject to change without notice. ? 2010 microdc professional power module, inc. guangzhou 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. 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. all specifications are measured at ta=25 c, humidity<75%, nominal input voltage and rated output load unless otherwise specified. 2. in this data sheet , all the test methods of indications are based on corporate standards. 3. only typical model listed. non-standard models will be different from the above, please contact us for more details. 4. the products cannot be used in parallel and in plug and play . 5. the ctrl control pin voltage is referenced to gnd. 6. capacitor or max load tested at nominal input voltage and constant resistive load. 7. refer to the diagram of output voltage trim up/ down for trim applications.
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