October 2002FDH20N40 / FDP20N40 20A, 400V, 0.216 Ohm, N-Channel SMPS Power MOSFETApplications Features Low Gate Charge Qg results in Simple DriveSwitch Mode Power Supplies(SMPS), such as Requirement PFC Boost Improved Gate, Avalanche and High Reapplied dv/dt Two-Switch Forward ConverterRuggedness Single Switch Forward Converter Reduced rDS(ON) Flyb

isc N-Channel MOSFET Transistor FDH20N40FEATURESDrain Current I = 20A@ T =25D CDrain Source Voltage-: V =400V(Min)DSSStatic Drain-Source On-Resistance: R = 0.216(Max)DS(on)100% avalanche testedMinimum Lot-to-Lot variations for robust deviceperformance and reliable operationDESCRIPTIONDesigned for use in switch mode power supplies and generalpurp