The AP2P052Y from Advanced Power Electronics Corp is a MOSFET with Continous Drain Current -4.1 to -5.1 A, Drain Source Resistance 52 to 90 milli-ohm, Drain Source Breakdown Voltage -20 V, Gate Source Voltage -8 to 8 V, Gate Source Threshold Voltage -0.3 to -1 V. Tags: Surface Mount. More details for AP2P052Y can be seen below.