q q f-xt f-xt q q e-xt e-xt series series http://www.microdc.cn technical enquiries-email:tech@microdc.cn tel:0086-20-86000646 page 1 of 3 selection selection guide guide order code input output efficiency (%.typ.) voltage(vdc) voltage (vdc) current(ma) nominal range max. q f05 03 xt 5 4.5 - 5.5 3.3 65 81 q f05 0 5xt 5 4.5 - 5.5 5 50 83 q f0512xt 5 4.5 - 5.5 12 21 74 q f0515xt 5 4.5 - 5.5 15 16.75 76 q e05 0 5xt 5 4.5 - 5.5 5 25 81 q e0512xt 5 4.5 - 5.5 12 13 85 q e0515xt 5 4.5 - 5.5 15 8.5 83 q f12 03 xt 12 10.8 - 13.2 3.3 65 86 q f12 0 5xt 12 10.8 - 13.2 5 50 85 q f1212xt 12 10.8 - 13.2 12 21 74 q f1215xt 12 10.8 - 13.2 15 16.75 78 q e12 0 5xt 12 10.8 - 13.2 5 25 80 q e1212xt 12 10.8 - 13.2 12 13 80 q e1215xt 12 10.8 - 13.2 15 8.5 85 q f24 03 xt * 24 21.6 - 26.4 3.3 65 81 q f24 0 5xt * 24 21.6 - 26.4 5 50 85 q f2412xt * 24 21.6 - 26.4 12 21 83 q f2415xt * 24 21.6 - 26.4 15 16.75 86 q e24 0 5xt * 24 21.6 - 26.4 5 25 85 q e2412xt * 24 21.6 - 26.4 12 13 74 q e2415xt * 24 21.6 - 26.4 15 8.5 78 * desining ... case material : non-conductive plastic (ul 91v-0 rated) weight : 2.0 g (0. 0 7oz) model model selection selection f(e) f(e) 05 05 05 05 x x t t product series input voltage output voltage fixed input smd package microdc r eserves the copyright 0.25 w, fixed input, isolated single/dual output dc - dc converter features features fixed input range short circuit protection(automatic recovery) i/o isolation voltage 3000vdc operating temperature: -40 85 high efficiency up to 80% high accuracy of pin co-planarity small smd package with footprint available in tape and reel package single and dual output models excellent load and line regulation applications applications the q f(e)-xt series are miniature, 0.25 w dc/dc converters with high isolation in a smd package.with a new package design these converters are qualif i ed for the higher temperatures requested by lead-free ref l ow solder processes.with the small footprint,these converters are the ideal solution for board level power distribution,mainly for applications in the industrial and telecom field. for automated smd production lines the devices can be supplied in standard tape and reel package. input input specifications specifications parameter conditions max. input current at full load 5 vin models: 7.5 ma /65 ma typ. 12 vin models: 3.75 ma /27.5 ma typ. 24 vin models: 2 ma /13.75 ma typ. surge voltage (1sec. max.) 5 vin models: 2.25 v max. 12 vin models: 4.5 v max. 24 vin models: 7.5 v max. reverse voltage protection 0.075a max. input filter internal capacitor
q q f-xt f-xt q q e-xt e-xt series series http://www.microdc.cn technical enquiries-email:tech@microdc.cn tel:0086-20-86000646 page 2 of 3 output output specifications specifications parameter conditions voltage set accuracy s ee graphs below regulation C input variation 1.2 % / 1 % change vin C load variation see graphs below voltage balance (dual output models, balanced load) 1.0 % max. temperature coefficient 0.1 %/k ripple and noise (20 mhz bandwidth) 100 mvp - p max. temperature coefficient 0. 02 %/k max. short circuit protection limited 0.5 sec. max. capacitive load 3.3 vdc output models: 33 f max. 5 vdc output models: 33 f max. 12 vdc output models: 4.7 f max. 15 vdc output models: 2.2 f max. 5 vdc output models: 10 f max. 12 vdc output models: 2.2 f max. 15 vdc output models: 2.2 f max. general general specifications specifications parameter conditions temperature ranges C operating C 40 c + 85 c (no derating) C case temperature + 95 c max. C storage C 55 c + 125 c load derating (convection cooling) 4 %/k above +7 5 c humidity (non condensing) 95 % rel. h max. reliability, calculated mtbf (mil-hdbk-217f ground benign) > 2 mio h isolation voltage (60 sec) C input/output 30 00 vdc isolation capacity C input/output(100khz, 1v) 60 pf typ. isolation resistance C input/output (500 vdc) >1 gohm switching frequency 50 to 150 khz (depending on load) output output voltage voltage variation variation dependent dependent on on load load (at (at nominal nominal input input voltage) voltage) all specifications valid at nominal input voltage, full load and +25 c after warm-up time unless otherwise stated.
q q f-xt f-xt q q e-xt e-xt series series http://www.microdc.cn technical enquiries-email:tech@microdc.cn tel:0086-20-86000646 page 3 of 3 outline outline dimensions dimensions footprint footprint details details solder solder pad pad dimension dimension dimensions in [mm], () = inch pin pitch tolerances: 0.13 ( 0.005) other tolerances: 0.25 ( 0.01) footprint footprint details details pin single dual 1 -vin(gnd) -vin(gnd) 2 +vin +vin 3 no con. no con. 5 -vout common 6 no con. -vout 7 no con. no con. 8 +vout +vout 10 no con. no con. 11 no con. no con. 12 no con. no con. no con . =pin to be isolated from circuitry specifcations can be changed any time without notice. no parallel connection or plug and play. 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. mechanical mechanical dimensions dimensions note: unit:mm[inch] pin section toleranc e s: 0.10mm[ 0.004inch] general tolerances: 0.25mm[ 0.010inch] tube tube outline outline dimensions dimensions unless otherwise stated all dimensions in mm 0.5 (inches 0.02). tube length : 475 2.0 (18.70 0.07). tube quantity :25
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