The APT56F50B2 from Microchip Technology is a MOSFET with Continous Drain Current 56 A, Drain Source Resistance 100 milliohm, Drain Source Breakdown Voltage 500 V, Gate Source Voltage -30 to 30 V, Gate Source Threshold Voltage 2.5 to 5 V. Tags: Through Hole. More details for APT56F50B2 can be seen below.