The AP9971GM-HF from Advanced Power Electronics Corp is a MOSFET with Continous Drain Current 3.2 to 5 A, Drain Source Resistance 50 to 60 milli-ohm, Drain Source Breakdown Voltage 60 V, Gate Source Voltage -25 to 25 V, Gate Source Threshold Voltage 1 to 3 V. Tags: Surface Mount. More details for AP9971GM-HF can be seen below.