The AP4NAR85CMT from Advanced Power Electronics Corp is a MOSFET with Continous Drain Current 49 to 280 A, Drain Source Resistance 0.85 to 1.5 milli-ohm, Drain Source Breakdown Voltage 40 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1.2 to 2.5 V. Tags: Surface Mount. More details for AP4NAR85CMT can be seen below.