The AP20N15GI-HF from Advanced Power Electronics Corp is a MOSFET with Continous Drain Current 12 to 20 A, Drain Source Resistance 100 milli-ohm, Drain Source Breakdown Voltage 150 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 2 to 4 V. Tags: Through Hole. More details for AP20N15GI-HF can be seen below.