The APT77N60JC3 from Microchip Technology is a MOSFET with Continous Drain Current 77 A, Drain Source Resistance 35 milliohm, Drain Source Breakdown Voltage 600 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 2.1 to 3.9 V. Tags: Screw Mount. More details for APT77N60JC3 can be seen below.