The AP6N4R2BP from Advanced Power Electronics Corp is a MOSFET with Continous Drain Current 65 to 103 A, Drain Source Resistance 4.2 milli-ohm, Drain Source Breakdown Voltage 60 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 2 to 4 V. Tags: Through Hole. More details for AP6N4R2BP can be seen below.