The AP4028EYT from Advanced Power Electronics Corp is a MOSFET with Continous Drain Current 11.6 to 14.5 A, Drain Source Resistance 7 to 20 milli-ohm, Drain Source Breakdown Voltage 30 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1.2 to 2.5 V. Tags: Surface Mount. More details for AP4028EYT can be seen below.