The AP9452GG-HF from Advanced Power Electronics Corp is a MOSFET with Continous Drain Current 2.5 to 4 A, Drain Source Resistance 38 to 80 milli-ohm, Drain Source Breakdown Voltage 20 V, Gate Source Voltage -16 to 16 V, Gate Source Threshold Voltage 0.5 to 1.5 V. Tags: Surface Mount. More details for AP9452GG-HF can be seen below.