The AP15NA052MT from Advanced Power Electronics Corp is a MOSFET with Continous Drain Current 5.2 to 21 A, Drain Source Resistance 52 milli-ohm, Drain Source Breakdown Voltage 150 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 2 to 5 V. Tags: Surface Mount. More details for AP15NA052MT can be seen below.