Popular transistors.

IRFP450 MOSFET transistor.
Pinout. Datasheet.

Package: TO-247, 1-gate, 2-drain, 3 - sourse.
Type of IRFP450 transistor: MOSFET
Type of control channel: N - Channel
Maximum power dissipation (PD):190W
Maximum drain-source voltage (VDSS): 500V
Maximum gate-source voltage (VGS): ±20V
Maximum continuous drain current (ID):14A
Maximum pulsed drain current (IDM):56A
Maximum junction temperature (Tj): 150C
Rise Time(tR):59ns
Input Capacitance (Ciss):2600 pF
Output Capacitance (Coss):720pF
Maximum drain-source on-state resistance (RDS): 0.40 Ohm
Forward Transconductance(gfs):9,3(min.)