The APT19M120J from Microchip Technology is a MOSFET with Continous Drain Current 19 A, Drain Source Resistance 530 milliohm, Drain Source Breakdown Voltage 1200 V, Gate Source Voltage -30 to 30 V, Gate Source Threshold Voltage 3 to 5 V. Tags: Screw Mount. More details for APT19M120J can be seen below.