This part is a kind of semiconductor called IRFP450.

Function of this product has N-Channel MOSFET Transistor.

Manufacturers : Inchange Semiconductor

Image and pinout :

Some of the text within the PDF file :

INCHANGE Semiconductor isc N-Channel MOSFET Transistor isc Product Specification IRFP450 FEATURES ·Drain Current –ID= 14A@ TC=25℃ ·Drain Source Voltage- : VDSS= 500V(Min) ·Static Drain-Source On-Resistance : RDS(on) = 0.4Ω(Max) ·Fast Switching DESCRIPTION ·Designed for use in switch mode power supplies and general purpose applications. ABSOLUTE MAXIMUM RATINGS(Ta=25℃) SYMBOL PARAMETER VALUE UNIT VDSS VGS Drain-Source Voltage Gate-Source Voltage-Continuous 500 ±20 V V ID Drain Current-Continuous 14 A IDM Drain Current-Single Pluse 56 A PD Total Dissipation @TC=25℃ 180 W TJ Max. Operating Junction Temperature -55~150 ℃ Tstg Storage Temperature -55~150 ℃ THERMAL CHARACTERISTICS SYMBOL PARAMETER MAX UNIT Rth j-c Thermal Resistance, Junction to Case [ ... ]

IRFP450 PDF Datasheet Download