DA2420-AL COILCRAFT | Alldatasheet
Document overview
- Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
- PDF pages: 1
Technical content
© Coilcraft, Inc. 2008 Specifications subject to change without notice. Please check our website for latest information. PoE Transformers Document 544 Document 544 Revised 09/11/06 For ST Microelectronics STE12PS PSE Power Controller 1. When ordering, please specify a packaging code: DA2420-ALD Packaging: D =1 3″ machine ready reel. EIA-481 embossed plastic tape (175 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. These surface mount flyback transformers were devel- oped specifically for the ST Microelectronics STE12PS 12-Channel PSE Power Control Device. They are designed to work with a 3.3 V input to provide a 12 V output. Isolation is 500 Vdc from each primary winding to the secondary winding. Coilcraft can also design custom transformers with voltage, inductance and DCR values to meet your specific requirements. For free evaluation samples, contact Coilcraft or order them on-line at www.coilcraft.com. 2. Inductance is for the primary, measured at 100 kHz, 0.1 Vrms, 0 Adc. 3. Ipk is the peak current drawn at minimum input voltage. 4. Leakage inductance measured on the primary windings with all secondary pins shorted. 5. Turns ratio is with the primary windings connected in parallel. 6. Operating temperature range –40°C to +125°C. 7. Electrical specifications at 25°C. Weight: 14.1 – 14.6 g Terminations: Tin-silver over tin over nickel over phos bronze Tape and reel: 175/13″ reel, 44 mm tape width For packaging data see Tape and Reel Specifications section. Part L at 0 A 2 L at Ipk3 DCR max (Ohms) Leakage L Turns ratio 5 Ipk3 number1 ±10% (µH) min (µH) 1-5 2-6 12-7 max (µH) 4 pri : sec (A) Output Sec Pri 0.130 3,30 0.050 1,27 0.450 11,43 0.080 2,03 1.181 30,00 0.827 21,00 0.810 20,57 0.969 24,60 0.930 23,62 0.028 0,711 0.118 3,0 0.118 3,0 max Dot indicates pin 1 max max 11 2 6 7 Recommended Land Pattern 0.004 /0,10 DA242X-AL Primary windings to be connected in parallel on the PC board.