FA2924-AL COILCRAFT | Alldatasheet
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© Coilcraft, Inc. 2009 Specifications subject to change without notice. Please check our website for latest information. Flyback Transformers Document 608 Document 608 Revised 10/29/08 For Silicon Laboratories Si3400 and Si3401 PD Controllers Inductance Inductance Leakage Part Power at 0 A 2 at Ipk3 DCR max (Ohms)4 inductance5 Turns ratio6 Ipk3 number1 (W) ±10% (µH) min (µH) pri sec max (µH) pri : sec (A) Output 7 1. When ordering, please specify packaging code: FA2925-AL D Packaging: D =1 3″ 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 for the primary, measured at 200 kHz, 0.2 Vrms, 0 Adc. 3. Ipk is peak primary current drawn at minimum input voltage. 4. DCR for the secondary is per winding. 5. Leakage inductance measured between pins 1 and 2 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 25°C. Refer to Doc 362 “Soldering Surface Mount Components” before soldering. 0.500 12,70 0.530 13,46 0.039 1,00 0.512 13,00 0.699 17,75max 0.028 0,70 0.098 2,50 max max 0.004 /0,10 Dot above pin1 0.080 2,03 0.590 14,99 0.050 1,27 0.098 2,50 Recommended Land Pattern Secondary windings to be connected in parallel on PC board Pri Sec Core material Ferrite Terminations RoHS tin-silver over tin over nickel over phos bronze. Other terminations available at additional cost. Weight 6.57 – 6.71 g Ambient temperature –40°C to +85°C Storage temperature Component: –40°C to +85°C. Packaging: –40°C to +80°C Resistance to soldering heat Max three 40 second reflows at +260°C, parts cooled to room temperature between cycles Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30°C / 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 for Power over Ethernet PD controllers for appli- cations up to 15 Watts. Operates in continuous conduction mode with 36 – 57 V input 1500 Vrms isolation between primary and secondary Dimensions are in inches mm