The AP3N4R0J from Advanced Power Electronics Corp is a MOSFET with Continous Drain Current 56 to 89 A, Drain Source Resistance 4 to 6 milli-ohm, Drain Source Breakdown Voltage 30 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1 to 3 V. Tags: Through Hole. More details for AP3N4R0J can be seen below.