The AP4052CMT from Advanced Power Electronics Corp is a MOSFET with Continous Drain Current 16.6 to 46.5 A, Drain Source Resistance 7 to 9.5 milli-ohm, Drain Source Breakdown Voltage 30 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1.3 to 3 V. Tags: Surface Mount. More details for AP4052CMT can be seen below.