FLYBACK TRANSFORMERS P620F SERIES • Flyback transformers for 30 Watt PoE applications • Operating Frequency 250KHz with input voltage 36 to 72 Volts • Isolation 1500Vrms, 60 seconds (Pri, Aux to Sec) • Operating Temperature -40ºC to +125ºC • RoHS Compliant Product • Custom Design Available ELECTRICAL PARAMETERS @ 25°C Part Number Power (W) P620F- DCR Pri OCL (μH) Pri LL (μH MAX) (mΩ MAX) ±10% Pri Sec Aux Turns Ratio Output Sec ±5% Pri:Sec Pri:Aux V/A 33 30 42 0.070 0.0023 0.22 3.00 1 : 0.09 1 : 0.33 3.3 / 9 50 30 42 0.069 0.0050 0.225 1.60 1 : 0.14 1 : 0.33 5.0 / 6 12 30 42 0.061 0.0150 0.195 0.55 1 : 0.33 1 : 0.33 12 / 2.5 19 30 42 0.060 0.0370 0.195 0.43 1 : 0.56 1 : 0.33 19.5 / 1.5 24 30 42 0.060 0.0550 0.195 0.31 1 : 0.67 1 : 0.33 24 / 1.25 Note: 1. Primary OCL measured @ 250KHz 0.7Vrms 2. Primary Leakage L measured @ 250KHz 0.7Vrms with 7-8-9-10-11-12 shorted 3. DCR measured with windings in parallel 4. Hi-pot: 1500Vrms, 1mA, 60s (Pri, Aux to Sec); 1800Vrms, 1mA, 5s (Pri, Aux, and Core to Sec); 500Vrms, 1mA, 5s (between Pri, Aux, and Core) 5. Polarity: 1, 2, 5, 10, 11, and 12 are in phase 6. Ipk: 2.6Adc, ΔL < 10% from initial value DIMENSIONS Product performance is limited to specified parameters. Data is subject to change without prior notice. Tel: 310-325-1043 Fax: 310-325-1044 SCHEMATIC Dimensions Unless otherwise specified, all tolerances are: inch: .XX : ±0.010 .XXX : ±0.005 mm: X,X : ±0,254 X,XX : ±0,13 www.mpsind.com [email protected]