wra wra wra wra wra wra wra wra - - - - - - - - zmd-10w zmd-10w zmd-10w zmd-10w zmd-10w zmd-10w zmd-10w zmd-10w wrb wrb wrb wrb wrb wrb wrb wrb - - - - - - - - zmd zmd zmd zmd zmd zmd zmd zmd -10w -10w -10w -10w -10w -10w -10w -10w series series 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 z z z z z z z z m m m m m m m m d d d d d d d d - - - - - - - - 10w 10w 10w 10w 10w 10w 10w 10w product series input voltage output voltage wide ( 4 :1) input range metal shield dip package style rated power 10 10 10 10 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 n o heat sink required no external component required internal smd required m etal shielding package mtbf>1000khours applications applications applications applications applications applications applications applications the wra_ z md- 10 w&wrb_ z md- 10 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 http://www.microdc.cn technical enquiries-email:tech@microdc.cn tel:0086-20-86000646 page 1/3 selection selection selection selection selection selection selection selection guide guide guide guide guide guide guide guide o rder code input output efficiency (%,typ) voltage(vdc) voltage (vdc) current(ma) nominal range max* max. min. wra2405zmd-10w 24 9-36 40 5 1000 100 84 wra2412zmd-10w 24 9-36 40 12 416 42 81 wra2415zmd-10w 24 9-36 40 15 333 33 83 wrb2405zmd-10w 24 9-36 40 5 2000 200 79 wrb2412zmd-10w 24 9-36 40 12 833 83 81 wrb2415zmd-10w 24 9-36 40 15 666 67 81 wra4812zmd-10w 48 18-72 80 12 416 42 85 wra4815zmd-10w 48 18-72 80 15 333 33 83 wrb4812zmd-10w 48 18-72 80 12 833 83 85 wrb4815zmd-10w 48 18-72 80 15 666 67 83 * input voltage can t exceed this value,or will cause the permanent damage. common common common common common common common common specifications specifications specifications specifications specifications specifications specifications specifications parameter conditions min. typ. max. units storage humidity 95 % operating temperature -40 85 storage temperature -55 125 temp. rise at full load 40 lead temperature 1.5mm from case for 10 seconds 300 cooling free air convection short circuit protection continuous, automatic recovery case material aluminium alloy isolation voltage tested for1 minute and 1ma max 1500 vdc isolation resistance test at 500vdc 1000 m isolation capacitance input/output 1000 pf mtbf 1000 k hours weight 23.5 g
wra wra wra wra wra wra wra wra - - - - - - - - zmd-10w zmd-10w zmd-10w zmd-10w zmd-10w zmd-10w zmd-10w zmd-10w wrb wrb wrb wrb wrb wrb wrb wrb - - - - - - - - zmd zmd zmd zmd zmd zmd zmd zmd -10w -10w -10w -10w -10w -10w -10w -10w series series typical typical typical typical typical typical typical typical characteristics characteristics characteristics characteristics characteristics characteristics characteristics characteristics temperature derating graph recommended recommended recommended recommended recommended recommended recommended recommended circuit circuit circuit circuit circuit circuit circuit circuit output graph output external capacitor table(table 1) single vout cout dual vout cout (vdc) ( f) (vdc) ( f) 5 680 5 680 12 470 12 330 15 330 15 220 parameter conditions min. typ. max. units output power see below products program 1.0 10 w positive voltage accuracy refer to recommended circuit 1 3 % negative voltage accuracy refer to recommended circuit 3 5 % load regulation form 10% to 100% load 0.5 1* % line regulation input voltage from low to high 0.2 0.5 % temperature drift (vout) refer to recommended circuit 0.03 %/ c ripple** 20mhz bandwidth 20 50 mvp-p noise** 20mhz bandwidth 75 150 mvp-p switching frequency 100% load, input voltage range 300 khz * dual output models unbalanced load: 5%. ** test ripple and noise by parallel cable method. see detailed operation instructions at testing of power converter section, application notes. temperature temperature temperature temperature temperature temperature temperature temperature characteristics characteristics characteristics characteristics characteristics characteristics characteristics characteristics http://www.microdc.cn technical enquiries-email:tech@microdc.cn tel:0086-20-86000646 page 2/3 application application application application application application application application note note note note note note note note 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. recommended recommended recommended recommended circuit circuit circuit circuit all the wra_ z md- 10 w&wrb_ z md- 10 w series have been tested ccording 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 greatest capacitance of its filter capacitor sees (table 1).general: cin: 10 f-47 f c out : 10 f/100ma ctrl ctrl ctrl ctrl terminal terminal terminal terminal when open or high impedance,the converter work well; when this pin is high ; the converter shutdown; it should be note that the input current (ic) should between 5-10ma, exceeding the maximum 20ma will cause permanence damage to the converter. the value of r can be derived as follows : input input input input current current current current while using unstable power source,please ensure the output voltage and ripple voltage do not exceed indexes of the converter.the preceding power source must be able to provide for converter sufficient starting current ip(figure 2). general:ip 1. 6 *iin-max 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
wra wra wra wra wra wra wra wra - - - - - - - - zmd-10w zmd-10w zmd-10w zmd-10w zmd-10w zmd-10w zmd-10w zmd-10w wrb wrb wrb wrb wrb wrb wrb wrb - - - - - - - - zmd zmd zmd zmd zmd zmd zmd zmd -10w -10w -10w -10w -10w -10w -10w -10w series series 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) http://www.microdc.cn technical enquiries-email:tech@microdc.cn tel:0086-20-86000646 page 3/3 pin single dual 1 gnd gnd 2 vin vin 3 +vo +vo 4 n c 0v 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. 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= 230 mm[ 9.055 inch] tube quantity: 7 pcs
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