The AP2P053Y from Advanced Power Electronics Corp is a MOSFET with Continous Drain Current -4 to -5 A, Drain Source Resistance 53 to 120 milli-ohm, Drain Source Breakdown Voltage -20 V, Gate Source Voltage -12 to 12 V, Gate Source Threshold Voltage -0.5 to -1.2 V. Tags: Surface Mount. More details for AP2P053Y can be seen below.