The AP3N9R5MT from Advanced Power Electronics Corp is a MOSFET with Continous Drain Current 14.2 to 37.8 A, Drain Source Resistance 9.5 to 13.5 milli-ohm, Drain Source Breakdown Voltage 30 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1.3 to 2.3 V. Tags: Surface Mount. More details for AP3N9R5MT can be seen below.