wra-zd-4w&wrb-zd-4w wra-zd-4w&wrb-zd-4w wra-zd-4w&wrb-zd-4w wra-zd-4w&wrb-zd-4w wra-zd-4w&wrb-zd-4w wra-zd-4w&wrb-zd-4w wra-zd-4w&wrb-zd-4w wra-zd-4w&wrb-zd-4w series series http://www.microdc.cn technical enquiries-email:tech@microdc.cn tel:0086-20-86000646 page 1 of 3 ordercode ordercode ordercode ordercode input input input input voltage voltage voltage voltage range range range range * output output output output voltage voltage voltage voltage output output output output current current current current max. max. max. max. efficiency efficiency efficiency efficiency typ. typ. typ. typ. WRB2403ZD-4W 9 C 36 vdc 3.3vdc 900ma 77% wrb2405zd-4w 9 C 36 vdc 5vdc 660ma 81% wrb2412zd-4w 9 C 36 vdc 12vdc 330ma 83% wrb2415zd-4w 9 C 36 vdc 15vdc 265ma 83% wra2405zd-4w 9 C 36 vdc 5vdc 330 ma 80 % wra2412zd-4w 9 C 36 vdc 12 vdc 165 ma 83 % wra2415zd-4w 9 C 36 vdc 15 vdc 130 ma 83 % wrb4803zd-4w 18 C 75 vdc 3.3 vdc 900 ma 78 % wrb4805zd-4w 18 C 75 vdc 5 vdc 660 ma 82 % wrb4812zd-4w 18 C 75 vdc 12 vdc 330 ma 85 % wrb4815zd-4w 18 C 75 vdc 15 vdc 265 ma 85 % wra4805zd-4w 18 C 75 vdc 5 vdc 300 ma 82 % wra4812zd-4w 18 C 75 vdc 12 vdc 165 ma 85 % wra4815zd-4w 18 C 75 vdc 15 vdc 130 ma 85 % *input voltage can t exceed this value,or will cause the permanent damage. 4 4 4 4 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 ultra wide 4:1 4:1 4:1 4:1 input range 9 C 36vdc or 18 C 75vd c full smd-design high efficiency up to 85% indefinite short-circuit protection reverse voltage protection i / o-isolation 1500 vd c input filter meets en 55022, class a and fcc, level a without external components shielded metal case with insulated baseplate 24-pin dip with industry standard pin out mtbf >1 mio. h 2 year product warranty applications applications applications applications applications applications applications applications microdc reserves the copyright models models models models models models models models 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 12 12 12 12 12 12 12 12 z z z z z z z z d d d d d d d d - - - - - - - - 4 4 4 4 4 4 4 4 w w w w w w w w product series input voltage output voltage wide ( 4 :1) input range dip 24 package style rated power the wra(b)-zd-4w series dc/dc converter is designed for applications requiring very wide operating voltage range. typical applications are tele- and data communication systems, mobile battery powered equipments and industrial process control systems with operation from different input voltages i.e. 12/24 vdc or 24/48 vdc battery voltages. high efficiency allows operation up to 75 c without derating. input filtering according en 55022-a and fcc, level a. low output ripple minimise design-in time and cost. physical physical physical physical physical physical physical physical specifications specifications specifications specifications specifications specifications specifications specifications case material steel chrome-nickel plated baseplate epoxy potting material silicon rubber tse (flammability to ul 94v-0) weight 14 g (0.55 oz) soldering temperature max. 260 c / 10 sec
wra-zd-4w&wrb-zd-4w wra-zd-4w&wrb-zd-4w wra-zd-4w&wrb-zd-4w wra-zd-4w&wrb-zd-4w wra-zd-4w&wrb-zd-4w wra-zd-4w&wrb-zd-4w wra-zd-4w&wrb-zd-4w wra-zd-4w&wrb-zd-4w series series http://www.microdc.cn technical enquiries-email:tech@microdc.cn tel:0086-20-86000646 page 2 of 3 input input input input input input input input specifications specifications specifications specifications specifications specifications specifications specifications input current no load /full load 24 vin models 20 ma / 400 ma typ. (at 12 vdc vin) 20 ma / 200 ma typ. (at 24 vdc vin) 48 vin models 6 ma / 200 ma typ. (at 24 vdc vin) 6 ma / 100 ma typ. (at 48 vdc vin) start-up voltage / under voltage shut down 24 vin models 8.5 vdc /8.0 vdc typ. 48 vin models 17 vdc /16 vdc typ. surge voltage (1 sec. max.) 24 vin models 50 v max. 48 vin models 100 v max. reverse voltage protection 1.0 a max. conducted noise (input) en 55022 level a, fcc part 15, level a output output output output output output output output specifications specifications specifications specifications specifications specifications specifications specifications voltage set accuracy 1 % regulation C input variation vin min. to vin max . 0.3 % max . C load variation 10 C 100 % C single output model 1.0 % max . C dual output models balanced loa d 1.0 % max . C dual output models unbalanced loa d 3.0 % max . ripple and noise (20 mhz bandwidth) 450 mvpk-pk max temperature coefficient 0.02 % / current limitation > 110% of iout max., constant current short circuit protection hiccup mode, indefinite (automatic recovery) capacitive load C single output model 680 f max . C dual output model 300 f max . general general general general general general general general specifications specifications specifications specifications specifications specifications specifications specifications temperature ranges C operatin g C 40 c ... + 75 c(no derating) C case temperatur e + 95 c max . C storag e C 40 c ... + 125 c humidity (non condensing) 95 % rel h max. reliability, calculated mtbf (mil-hdbk-217 e) >1 mio. h @ + 25 c isolation voltage input/output 1500 vd c isolation capacity input/output 380 pf typ isolation resistance input/output (500 vdc) > 1000 m oh m switching frequency 350 khz typ. (pulse frequency modulation pfm) safety standards ul 1950 , iec 60950, en 60950 compliance up to 60 vdc input voltage(selv limit) safety approval cul / ul file e188913 all specifications valid at nominal input voltage, full load and +25 c after warm-up time unless otherwise stated .
wra-zd-4w&wrb-zd-4w wra-zd-4w&wrb-zd-4w wra-zd-4w&wrb-zd-4w wra-zd-4w&wrb-zd-4w wra-zd-4w&wrb-zd-4w wra-zd-4w&wrb-zd-4w wra-zd-4w&wrb-zd-4w wra-zd-4w&wrb-zd-4w series series 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 mm mm mm mm mm mm mm mm (inches) (inches) (inches) (inches) (inches) (inches) (inches) (inches) pin diameter ? 0.5 0.0 5 (0.02 0.00 2 ) tolerances 0.5 (0.02 ) pin-out pin-out pin-out pin-out pin-out pin-out pin-out pin-out pin single dual 2 C vin (gnd) C vin (gnd) 3 C vin (gnd) C vin (gnd) 9 no pin common 11 no function C vou t 14 +vout +vout 16 C vout commo n 22 +vin (vcc) +vin (vcc) 23 +vin (vcc) +vin (vcc) recommended recommended recommended recommended recommended recommended recommended recommended footprint footprint footprint footprint footprint footprint footprint footprint tube tube tube tube tube tube tube tube outline outline outline outline outline outline outline outline dimensions dimensions dimensions dimensions dimensions dimensions dimensions dimensions 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.
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