The APT30M40JVR from Microchip Technology is a MOSFET with Continous Drain Current 70 A, Drain Source Resistance 40 milliohm, Drain Source Breakdown Voltage 300 V, Gate Source Voltage -30 to 30 V, Gate Source Threshold Voltage 2 to 4 V. Tags: Screw Mount. More details for APT30M40JVR can be seen below.