wra-zt-1w5&wrb-zt-1w5 wra-zt-1w5&wrb-zt-1w5 wra-zt-1w5&wrb-zt-1w5 wra-zt-1w5&wrb-zt-1w5 wra-zt-1w5&wrb-zt-1w5 wra-zt-1w5&wrb-zt-1w5 wra-zt-1w5&wrb-zt-1w5 wra-zt-1w5&wrb-zt-1w5 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 (%,typ) voltage (vdc) voltage (vdc) current (ma) nominal range max. * max . min . wra2405zt-1w5 24 9-36 40 5 150 15 74 wra2412zt-1w5 24 9-36 40 12 63 6 77 wra2415zt-1w5 24 9-36 40 15 50 5 75 wrb2403zt-1w5 24 9-36 40 3.3 500 50 71 wrb2405zt-1w5 24 9-36 40 5 300 30 76 wrb2409zt-1w5 24 9-36 40 9 167 17 76 wrb2412zt-1w5 24 9-36 40 12 125 12 79 wrb2415zt-1w5 24 9-36 40 15 100 10 80 wra4805zt-1w5 48 18-72 80 5 150 15 74 wra4812zt-1w5 48 18-72 80 12 63 6 76 wra4815zt-1w5 48 18-72 80 15 50 5 76 wrb4803zt-1w5 48 18-72 80 3.3 500 50 72 wrb4805zt-1w5 48 18-72 80 5 300 30 75 wrb4809zt-1w5 48 18-72 80 9 167 17 78 wrb4812zt-1w5 48 18-72 80 12 125 12 77 WRB4815ZT-1W5 48 18-72 80 15 100 10 77 *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 wra wra wra wra wra wra wra wra 24 24 24 24 24 24 24 24 05 05 05 05 05 05 05 05 z z z z z z z z t t t t t t t t - - - - - - - - 1 1 1 1 1 1 1 1 w w w w w w w w 5 5 5 5 5 5 5 5 product series input voltage output voltage wide ( 4 :1) input range smd package rated power 1.5w,wide input isolated®ulated single/dual output dc/dc converter miniature smd package features features features features features features features features smd package 4:1 wide input voltage range short circuit protection(automatic recovery) 1500vdc isolation operating temperature: -40 ~ +85 no heatsink required no external component required 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 wr a_ z t-1w5& wr b_ z t-1w5 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 4:1); 2) where isolation is necessary between input and output (isolation voltage 1500vdc); 3 ? here the regulation of the output voltage and the output ripple noise are demanded. common common common common common common common common specifications specifications specifications specifications specifications specifications specifications specifications parameter test conditions min. typ. max. units storage humidity 95 % operating temperature -40 85 storage temp. range -55 125 temp. rise at full load 15 lead temperature 1.5mm from case for 10 seconds 300 short circuit protection continuous, automatics recovery cooling free air convection case material epoxy resin (ul94-v0) mtbf 1000 k hours weight 5.2 g microdc microdc microdc microdc reserves reserves reserves reserves the the the the copyright copyright copyright copyright
wra-zt-1w5&wrb-zt-1w5 wra-zt-1w5&wrb-zt-1w5 wra-zt-1w5&wrb-zt-1w5 wra-zt-1w5&wrb-zt-1w5 wra-zt-1w5&wrb-zt-1w5 wra-zt-1w5&wrb-zt-1w5 wra-zt-1w5&wrb-zt-1w5 wra-zt-1w5&wrb-zt-1w5 s s eries eries http://www.microdc.cn technical enquiries-email:tech@microdc.cn tel:0086-20-86000646 page 2 of 3 isolation isolation isolation isolation isolation isolation isolation isolation specifications specifications specifications specifications specifications specifications specifications specifications parameter test conditions min. typ. max units isolation voltage tested for 1 minute and 1ma max 1500 vdc isolation resistance test at 500vdc 1000 m ? isolation capacitance input/output, 100khz/1v 1000 f 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 no no no less less less less than than than than 10% 10% 10% 10% load load load 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_zt-1w5 & wrb_zt-1w5 series have been tested according to the following recommended testing circuit before leaving factory. this series should be tested under 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 maximum capacitance of its filter capacitor sees (table 1). general: cin: 10 f~47 f cout: 10 f/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 flash startup current of this kind of dc/dc module (figure 2) general: ip 1.6*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 temperature temperature temperature temperature temperature temperature temperature temperature curve curve curve curve curve curve curve curve recommended recommended recommended recommended recommended recommended recommended recommended circuit circuit circuit circuit circuit circuit circuit circuit output output output output output output output output specifications specifications specifications specifications specifications specifications specifications specifications parameter test conditions min. typ. max units output power refer to products program 0.15 1.5 w positive voltage accuracy refer to recommended circuit 1 3 % negative voltage accuracy refer to recommended circuit 3 5 % load regulation from 10% to 100% load 0.5 1.5* % line regulation input voltage from low to high 0.2 0.75 % temperature drift (vout) refer to recommended circuit 0.03 %/ output ripple & noise** 20mhz bandwidth 35 100 mvp-p switching frequency 100% load, input voltage range 550 khz * dual output models unbalanced load: 5 %. **test ripple and noise by p arallel cable method. see detailed operation instructions at testing of power converter section, application notes.
wra-zt-1w5&wrb-zt-1w5 wra-zt-1w5&wrb-zt-1w5 wra-zt-1w5&wrb-zt-1w5 wra-zt-1w5&wrb-zt-1w5 wra-zt-1w5&wrb-zt-1w5 wra-zt-1w5&wrb-zt-1w5 wra-zt-1w5&wrb-zt-1w5 wra-zt-1w5&wrb-zt-1w5 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 recommended recommended recommended recommended recommended recommended recommended recommended footprint(top footprint(top footprint(top footprint(top footprint(top footprint(top footprint(top footprint(top view) view) view) view) view) view) view) view) 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. 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. capacitor max load tested at input voltage range and full load. 4. all specifications measured at ta=25 , humidity<75%, nominal input voltage and rated output load unless otherwise specified. 5. only typical models listed, other models may be different, please contact our technical person for more details. 6. in this datasheet, all the test methods of indications are based on corporate standards.
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