? coilcraft, inc. 2010 specifications subject to change without notice. please check our website for latest information. forward-mode transformers document 574 -1 document 574-1 revised 10/28/08 1. when ordering, please specify termination and packaging codes: fct1-240d3s ld termination: l = rohs tin-silver over tin over nickel over phos bronze. special order: t = rohs tin-silver-copper (95.5/4/0.5) or s = non-rohs tin-lead (63/37). 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 is measured at 250 khz, 0.2 vrms, 0 adc. 3. dcr for the primary and secondary is with the windings connected in parallel. 4. leakage inductance is for the primary windings with the secondary windings shorted. 5. turns ratio is with the primary windings and the secondary windings connected in parallel. 6. these inductors are recommended for 30% ripple current. ripple less than 30% may require the use of physically larger inductors. allowing higher ripple current to make use of smaller inductors may create a risk of discontinuous output current. 7. operating temperature range ?40c to +125c. 8. electrical specifications at 25c. refer to doc 362 ?soldering surface mount components? before soldering. leakage recommended part inductance 2 dcr max (mohms) 3 inductance 4 turns ratio 5 output number 1 min (h) pri sec bias sync max (h) pri : sec pri : bias pri : sync output inductor 6 fct1-33d3sl_ 72.9 27.5 5.0 250 160 0.425 1 : 0.33 1 : 11 : 0.56 3.3 v, 9 a ser2013-472 fct1-50d3sl_ 72.9 27.5 10.0 250 160 0.420 1 : 0.44 1 : 11 : 0.56 5 v, 6 a ser1360-103 fct1-120d3sl_ 72.9 27.5 28.5 250 160 0.175 1 : 11 : 11 : 0.56 12 v, 2.5 a mss1278-563 fct1-195d3sl_ 72.9 27.5 32.0 235 120 0.235 1 : 1.44 1 : 0.88 1 : 0.44 19.5 v, 1.55 a mss1278-154 fct1-240d3sl_ 72.9 27.5 72.5 235 120 0.235 1 : 1.78 1 : 0.88 1 : 0.44 24 v, 1.25 a mss1278-224 2 4 9 8 7 10 11 12 bias sync pri sec output inductor 5 6 1 3 the primary windings and the secondary windings are to be connected in parallel on the pc board. core material ferrite terminations rohs tin-silver over tin over nickel over phos bronze. other terminations available at additional cost. weight 10.1 ? 10.7 g ambient temperature ?40c to +125c storage temperature component: ?40c to +125c. 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 175 per 13 reel plastic tape: 44 mm wide, 0.4 mm thick, 32 mm pocket spacing, 12.0 mm pocket depth pcb washing only pure water or alcohol recommended ? designed to meet 30 w poe ieee 802.3at-2009 standard. ? operates at 250 khz with 36 ?7 2 volts input. ? 1500 vrms isolation, primary and bias to the secondary ? bias winding output: 12 v; sync winding output: 5 v for 30 watt telecommunications
? coilcraft, inc. 2010 forward-mode transformers C 30 watts specifications subject to change without notice. please check our website for latest information. document 574-2 document 574-2 revised 10/28/08 0.930 23,62 0.130 3,30 0.050 1,27 0.118 3,0 1 0.450 11,43 1.181 30,00 0.827 21,0 0.810 20,57 0.969 24,6 0.084 2,13 0.028 0,72 0.118 3,0 max max max 1 1 12 12 6 6 7 7 recommended land pattern 0.004 /0,10 dot indicates pin 1 fct1-xxd3sl dimensions are in inches mm
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