The AP3B020M from Advanced Power Electronics Corp is a MOSFET with Continous Drain Current 5.2 to 6.5 A, Drain Source Resistance 20 to 35 milli-ohm, Drain Source Breakdown Voltage -30 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1.4 to 2.5 V. Tags: Surface Mount. More details for AP3B020M can be seen below.