The AP4N2R6I-A from Advanced Power Electronics Corp is a MOSFET with Continous Drain Current 50.8 to 80 A, Drain Source Resistance 2.68 to 4 milli-ohm, Drain Source Breakdown Voltage 40 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1 to 3 V. Tags: Through Hole. More details for AP4N2R6I-A can be seen below.