The IRFZ46N from JSMicro Semiconductor is a MOSFET with Continous Drain Current 35.4 to 53 A, Drain Source Resistance 12 to 15 milli-ohm, Drain Source Breakdown Voltage 60 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 2.0 to 4.0 V. Tags: Through Hole. More details for IRFZ46N can be seen below.