The AP2P028EN from Advanced Power Electronics Corp is a MOSFET with Continous Drain Current -3.6 to -4.5 A, Drain Source Resistance 28 to 50 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 AP2P028EN can be seen below.