The IRFZ44N-A from JSMicro Semiconductor is a MOSFET with Continous Drain Current 20 A, Drain Source Resistance 36 milli-ohm, Drain Source Breakdown Voltage 60 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1.0 to 3.0 V. Tags: Through Hole. More details for IRFZ44N-A can be seen below.