Document 460-1 Flyback Transformers For 3 Watt, 7 Watt and 13 Watt PoE Applications • Flyback transformers for PoE applications • Designed to operate in continuous mode at 250 kHz with an input of 36 – 72 Vdc • 1500 Vrms, one minute isolation from primary and bias to second ary; 500 Vrms, 1 minute isolation between all other windings Designer’s Kit C395 contains two of each part shown in bold Core material Ferrite Terminations RoHS tin-silver over tin over nickel over phos bronze. Other terminations available at additional cost. Weight POE13P: 6.15 g; POE70P: 3.85 g; POE30P: 2.05 g Ambient temperature –40°C to +85°C Storage temperature Component: –40°C to +85°C. Tape and reel 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 PCB washing Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. See Doc787_PCB_Washing.pdf. InductanceInductance Leakage DCR max (Ohms)4inductance Turns ratio6 3 Ipk3 Part Power at 0 A2 at Ipk number1 (W) ±10% (µH) min (µH) pri bias sec max (µH)5 pri : sec pri : bias (A) POE30P-33L_ 3 POE30P-50L_ 3 POE30P-12L_ 3 POE70P-33L_ 7 POE70P-50L_ 7 POE70P-12L_ 7 POE13P-33L_ 13 POE13P-50L_ 13 POE13P-12L_ 13 POE13P-19L_ 13 POE13P-24L_ 13 310 310 310 155 155 155 127 127 127 127 127 279.01.022.010.066 4.75 279.01.022.010.118 4.50 279.01.042.010.700 4.25 139.5 0.4140.8220.036 4.00 139.5 0.4140.8220.060 3.60 139.5 0.4140.8220.343 3.25 114.3 0.2550.3100.024 1.25 114.3 0.2220.3480.039 0.950 114.3 0.1990.3080.065 0.650 114.3 0.2900.3550.066 0.800 114.3 0.2550.3150.067 0.600 1. When ordering, please specify packaging code: POE30P-12LD Packaging:D =13″ machine-ready reel. EIA-481 embossed plastic tape. 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, 0.1 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 3 and 4 with all other pins shorted. 6. Turns ratio is with the secondary windings connected in parallel. 7. Output of the secondary is with the windings connected in parallel. Bias winding output is 12 V, 20 mA. 8. Electrical specifications at 25°C. Refer to Doc 362 “Soldering Surface Mount Components” before soldering. 1 : 0.191 : 0.70 1 : 0.281 : 0.70 1 : 0.701 : 0.70 1 : 0.191 : 0.667 1 : 0.2621 : 0.667 1 : 0.6671 : 0.667 1 : 0.1661 : 0.50 1 : 0.251 : 0.50 1 : 0.501 : 0.50 1 : 0.5671 : 0.50 1 : 0.6671 : 0.50 0.3 0.3 0.3 0.65 0.65 0.65 1.0 1.0 1.0 1.0 1.0 Output7 3.3 V, 0.91 A 5.0 V, 0.6 A 12 V, 0.25 A 3.3 V, 2.12 A 5.0 V, 1.4 A 12 V, 0.6 A 3.3 V, 4.0 A 5.0 V, 2.6 A 12 V, 1.08 A 19.5 V, 0.67 A 24 V, 0.54 A Schematics POE13P 3 Pri 4 2 POE70P, POE30P 8 7 Sec 9 10 3 Pri 4 2 Bias Bias 1 1 Secondary windings to be connected in parallel on PC board 6 5 Sec 7 8 Secondary windings to be connected in parallel on PC board Document 460-1 Revised 05/04/12 Document 460-2 Flyback Transformers for PoE POE13P Internal code Part number POE13P-XXL XXXX Y 0.500 max 12,70 Packaging 175 per 13″ reel Plastic tape: 32 mm wide, 0.5 mm thick, 28 mm pocket spacing, 12.93 mm pocket depth 0.004 /0,10 0.039 1,00 Dot indicates pin1 0.699 max 17,75 0.512 13,00 0.028 10 0,70 1 0.080 2,03 Parts manufactured prior to April, 2012 may be marked differently. 0.050 1,27 0.590 14,99 0.530 max 13,46 5 1 6 Recommended Land Pattern 0.098 2,50 POE70P Internal code Part number Packaging 200 per 13″ reel Plastic tape: 32 mm wide, 0.5 mm thick, 24 mm pocket spacing, 11.2 mm pocket depth POE70P-XXL XXXX Y 0.433 max 11,00 0.098 2,50 0.004 /0,10 0.041 1,05 Dot indicates pin1 0.600 max 15,24 0.413 10,50 0.024 0,60 8 1 0.080 2,03 0.460 11,68 0.050 1,27 0.50 max 12,7 4 1 5 Recommended Land Pattern 0.098 2,50 POE30P Internal code 0.004 /0,10 0.520 max 13,21 0.339 8,60 1 Part number Packaging 350 per 13″ reel Plastic tape: 32 mm wide, 0.42 mm thick, 20 mm pocket spacing, 9.16 mm pocket depth POE30P-XXL 0.041 1,05 XXXX Y 0.355 max 9,02 0.098 2,50 Dot indicates pin1 0.028 0,70 8 0.080 2,03 0.370 9,40 0.050 1,27 0.430 max 10,92 4 5 1 0.098 2,50 Recommended 0.098 Land Pattern 2,50 Dimensions are in inches mm Document 460-2 Revised 05/04/12