The AP99T03GP-HF from Advanced Power Electronics Corp is a MOSFET with Continous Drain Current 120 to 200 A, Drain Source Resistance 2.5 to 4 milli-ohm, Drain Source Breakdown Voltage 30 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 0.8 to 2.5 V. Tags: Through Hole. More details for AP99T03GP-HF can be seen below.