View irfp450a datasheet:

PD -91884 SMPS MOSFET IRFP450A HEXFET® Power MOSFET Applications VDSS Rds(on) max ID Switch Mode Power Supply ( SMPS ) Uninterruptable Power Supply 500V 0.40? 14A High speed power switching Benefits Low Gate Charge Qg results in Simple Drive Requirement Improved Gate, Avalanche and Dynamic dv/dt Ruggedness Fully Characterized Capacitance and Avalanche Voltage and Current G D S TO-247AC Effective Coss Specified ( See AN 1001) Absolute Maximum Ratings Parameter Max. Units ID @ TC = 25°C Continuous Drain Current, VGS @ 10V 14 ID @ TC = 100°C Continuous Drain Current, VGS @ 10V 8.7 A IDM Pulsed Drain Current 56 PD @TC = 25°C Power Dissipation 190 W Linear Derating Factor 1.5 W/°C VGS Gate-to-Source Voltage ± 30 V dv/dt Peak Diode Recovery dv/dt 4.1 V/ns TJ Op