Popular transistors.

IRFZ44 MOSFET transistor.
Pinout. Datasheet.

Package: TO-220AB, 1-gate, 2-drain, 3 - sourse, 4-drain.
Type of IRFZ44 transistor: MOSFET
Type of control channel: N - Channel
Maximum power dissipation (PD): 94W
Maximum drain-source voltage (VDSS): 55V
Maximum gate-source voltage (VGS): ±20V
Maximum continuous drain current (ID):49A
Maximum pulsed drain current (IDM):160A
Maximum junction temperature (Tj): 175C
Rise Time(tR):60ns
Input Capacitance (Ciss):1470 pF
Output Capacitance (Coss):360 pF
Maximum drain-source on-state resistance (RDS): 0.0175 Ohm
Forward Transconductance(gfs):19