flyback transformer document 1110 document 1110 revised 03/10/14 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 max (h) pri : sec (a) output 7 NA5889-AL_ 12 12 10.8 0.03 0.0195 0.140 1 : 0.833 5.5 12 v, 1 a 1. when ordering, please specify packaging code: NA5889-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 200 khz, 1.0 vrms, 0 adc. 3. peak primary current drawn at minimum input voltage. 4. dcr for the primary and 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 primary and the secondary windings connected in parallel. 7. output of the secondary is with the windings connected in parallel. 8. electrical specifcations at 25c. refer to doc 362 soldering surface mount components before soldering. 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 tested with pure water or alcohol only. for other solvents, see doc787_pcb_washing.pdf ? developed for texas instruments tps55340 boost/sepic/flyback dc-dc regulator ? designed to operate at 200 khz with 2.9 C 32 volts input ? 1500 vrms, one minute isolation from primary windings to secondary windings for ti tps55340 dc-dc regulator 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 primary windings and secondary windings to be connected in parallel on pc board sec 11 0 29 47 56 pr i 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. 2014 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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