The APT12031JFLL from Microchip Technology is a MOSFET with Continous Drain Current 30 A, Drain Source Resistance 330 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 APT12031JFLL can be seen below.