flyback transformer document 483 document 483 revised 12/21/11 inductance inductance leakage part at 0 adc 2 at i pk 3 dcr max inductance 4 turns ratio i pk 3 number 1 10% (h) min (h) (ohms) max (h) pri : sec 5 pri : bias (a) output 6 c1453-al_ 50 40 0.185 (pins 3 C 1) 1.10 1 : 0.166 1 : 0.5 1.22 3.3 v, 1.5a 0.030 (pins 6 C 10) 0.030 (pins 7 C 9) 0.385 (pins 4 C 5) 1. when ordering, please specify packaging code: c1453-al d packaging: d = 13 machine ready reel. eia-481 embossed plastic tape (500 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 is for the primary, measured at 250 khz, 0.3 vrms. 3. peak primary current drawn at minimum input voltage. 4. leakage inductance is for the primary winding with the secondary wind - ings shorted. 5. turns ratio is with the secondary windings connected in parallel. 6. output of the secondary is with the windings connected in parallel. bias winding output is 10 v. 7. electrical specifcations at 25c. refer to doc 362 soldering surface mount components before soldering. for texas instruments tps23750 poe powered device controller 10 10 6 5 1 1 1 5 c1453-al xxxx y recommende d land p attern 0.453 11,50 0.512 13,00 0.256 6,50 0.394 10,00 0.063 1,60 0.079 2,00 0.055 1,40 0.028 0,70 0.079 2,00 max dot indicates pin 1 max max 0.004/0,10 10 6 core material ferrite terminations rohs tin-silver (96.5/3.5) over tin over nickel over phos bronze. other terminations available at additional cost. weight 1.4 g ambient temperature C40c to +125c storage temperature component: C40c to +125c. 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 500 per 13 reel plastic tape: 24 mm wide, 0.36 mm thick, 16 mm pocket spacing, 6.13 mm pocket depth pcb washing tested with pure water or alcohol only. for other solvents, see doc787_pcb_washing.pdf ? isolated non-synchronous fyback transformers developed for texas instruments pmp717 reference design. ? designed for discontinuous conduction mode, 34 C 57 v input ? 1500 vrms isolation primary to secondary windings 10 3 pr i bias sec 4 1 5 6 7 9 secondary windings to be connected in parallel on the pc board. dimensions are in inches mm 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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