irfp450apbf.pdf datasheet:

PD -95054SMPS MOSFETIRFP450APbFHEXFET Power MOSFETApplicationsVDSS Rds(on) max IDl Switch Mode Power Supply ( SMPS )l Uninterruptable Power Supply 500V 0.40 14Al High speed power switchingl Lead-FreeBenefitsl Low Gate Charge Qg results in Simple Drive Requirementl Improved Gate, Avalanche and Dynamicdv/dt Ruggednessl Fully Characterized Capacitance and Avalanche Voltage and CurrentG D STO-247ACl Effective Coss Specified ( See AN 1001)Absolute Maximum RatingsParameter Max. UnitsID @ TC = 25C Continuous Drain Current, VGS @ 10V 14ID @ TC = 100C Continuous Drain Current, VGS @ 10V 8.7 AIDM Pulsed Drain Current 56PD @TC = 25C Power Dissipation 190 WLinear Derating Factor 1.5 W/CVGS Gate-to-Source Voltage 30 Vdv/dt Peak Diode Recovery dv/dt 4.1 V/nsTJ Operating Junction and -55 to + 150TSTG Storage Temperature