The AP6NA3R4LIT from Advanced Power Electronics Corp is a MOSFET with Continous Drain Current 48.8 to 77 A, Drain Source Resistance 3.4 to 5.4 milli-ohm, Drain Source Breakdown Voltage 60 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1.2 to 3 V. Tags: Through Hole. More details for AP6NA3R4LIT can be seen below.