? coilcraft, inc. 2009 specifications subject to change without notice. please check our website for latest information. poe transformers document 560 document 560 revised 10/29/08 for silicon laboratories si3400 pd controller inductance inductance leakage part power at 0 a 2 at i pk 3 dcr max (ohms) 4 inductance turns ratio 6 i pk 3 number 1 (w) 10% (h) min (h) pri sec max (h) 5 pri : sec (a) output fa2671-al_ 10 40.0 36.0 0.098 0.062 0.395 10 : 3 1.3 3.3 v, 3.0 a fa2672-al_ 10 40.0 36.0 0.098 0.085 0.340 10 : 4 1.3 5.0 v, 2.0 a fa2732-al_ 10 40.0 36.0 0.098 0.156 0.370 1 : 1 1.3 12.0 v, 0.83 a 1. when ordering, please specify packaging code: fa2672-al d packaging: d =13 machine-ready reel. eia-481 embossed plastic tape (200 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 is for the primary, measured at 400 khz, 0.4 vrms, 0 adc. 3. i pk is peak primary current drawn at minimum input voltage. 4. dcr for the secondary is per winding. 5. leakage inductance measured between pins 2 and 3 with all secondary pins shorted. 6. turns ratio is with the secondary windings connected in parallel. 7. output is with the secondary windings connected in parallel. 8. electrical specifications at 25c. refer to doc 362 ?soldering surface mount components? before soldering. 0.080 2,03 1 0.450 11,43 0.50 12,7 0.041 1,05 0.413 10,50 0.600 15,24 max 0.460 11,68 0.024 0,60 0.050 1,27 0.098 2,50 0.098 2,50 max max 8 1 5 4 recommended land pattern dot above pin1 0.004 /0,10 secondary windings to be connected in parallel on pc board 5 6 7 8 pri sec 2 3 core material ferrite terminations rohs tin-silver over tin over nickel over phos bronze. other terminations available at additional cost. weight 3.8 ? 3.9 g ambient temperature ?40c to +85c storage temperature component: ?40c to +85c. packaging: ?40c to +80c resistance to soldering heat max three 40 second reflows at +260c, parts cooled to room temperature between cycles moisture sensitivity level (msl) 1 (unlimited floor 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 200 per 13 reel plastic tape: 32 mm wide, 0.5 mm thick, 24 mm pocket spacing, 11.2 mm pocket depth pcb washing only pure water or alcohol recommended ? designed for power over ethernet pd controllers for appli- cations up to 10 watts. ? operates in continuous conduction mode with 36 ? 72 v input ? 1500 vrms isolation between primary and secondary dimensions are in inches mm
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