flyback transformers document 788 document 788 revised 03/31/11 inductance inductance leakage part power at 0 a 2 at i pk 3 dcr max (ohms) 4 inductance 5 turns ratio 6 i pk 3 number 1 (w) 10% (h) min (h) pri sec bias max (h) pri : sec pri : bias (a) output 7 ha3691-al_ 20 100 90.0 0.185 0.0085 0.340 0.805 1 : 0.25 1 : 0.469 1.3 5 v, 4 a ja4173-al_ 20 100 90.0 0.211 0.0060 0.404 1.60 1 : 0.156 1 : 0.50 1.3 3.3 v, 6 a 1. when ordering, please specify packaging code: ha3691-al d packaging: d = 13 machine-ready reel. eia-481 embossed plastic tape (175 parts per full reel). b = less than full reel. in tape, but not machine ready. to have a leader and trailer added ($25 charge), use code letter d instead. 2. inductance measured at 250 khz, 0.2 vrms, 0 adc. 3. peak primary current drawn at minimum input voltage. 4. dcr for the secondary is with windings connected in parallel. 5. leakage inductance is for the primary and is measured with the secondary shorted. 6. turns ratio is with the secondary windings connected in parallel. 7. output of the secondary is with the windings connected in parallel. bias winding output is 10 v, 20 ma. 8. electrical specifcations at 25c. refer to doc 362 soldering surface mount components before soldering. secondary windings to be connected in parallel on pc board core material ferrite terminations rohs tin-silver over tin over nickel over phos bronze. other terminations available at additional cost. weight 6.5 g ambient temperature C40c to +85c storage temperature component: C40c to +85c. tape and reel packaging: C40c to +80c resistance to soldering heat max three 40 second refows at +260c, parts cooled to room temperature between cycles moisture sensitivity level (msl) 1 (unlimited foor life at <30c / 85% relative humidity) failures in time (fit) / mean time between failures (mtbf) 38 per billion hours / 26,315,789 hours, calculated per telcordia sr-332 packaging 175 per 13 reel plastic tape: 32 mm wide, 0.5 mm thick, 28 mm pocket spacing, 12.93 mm pocket depth pcb washing only pure water or alcohol recommended ? designed to operate at 250 khz in continuous conduction mode with 42 C 57 volts input ? 1500 vrms, one minute isolation from the primary and bias windings to the secondary windings for stmicroelectronics pm8803 poe plus powered device controller dimensions are in inches mm 0.500 12,70 0.530 13,46 0.039 1,00 0.512 13,00 0.699 17,75 max 0.028 0,70 0.098 2,50 max max 5 6 1 10 0.004 /0,10 dot abo ve pin1 0.080 2,03 1 0.590 14,99 0.050 1,27 0.098 2,50 recommended land p attern these parts are preproduction products for electrical evaluation only. specifcation subject to change without notice. us uk t aiwan china singapore +1-847-639-6400 sales@coilcraft.com +44-1236-730595 sales@coilcraft-eur ope.com +886-2-2264 3646 sales@coilcraft.com.tw +86-21-6218 8074 sales@coilcraft.com.cn + 65-6484 8412 sales@coilcraft.com.sg ? coilcraft inc. 2013 this pr oduct may not be used in medical or high risk applications without prior coilcraft appr oval. specification subject to change without notice. please check web site for latest infor mation.
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