The AP3N9R5AMT from Advanced Power Electronics Corp is a MOSFET with Continous Drain Current 14.5 to 38.7 A, Drain Source Resistance 9.5 to 17 milli-ohm, Drain Source Breakdown Voltage 30 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1.3 to 3 V. Tags: Surface Mount. More details for AP3N9R5AMT can be seen below.