The AP4NA2R8MT from Advanced Power Electronics Corp is a MOSFET with Continous Drain Current 26 to 113 A, Drain Source Resistance 2.8 to 4.9 milli-ohm, Drain Source Breakdown Voltage 40 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1 to 3 V. Tags: Surface Mount. More details for AP4NA2R8MT can be seen below.