The AP20AN160H from Advanced Power Electronics Corp is a MOSFET with Continous Drain Current 18 A, Drain Source Resistance 160 milli-ohm, Drain Source Breakdown Voltage 200 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1 to 3 V. Tags: Surface Mount. More details for AP20AN160H can be seen below.