The AP15NA4R4TL from Advanced Power Electronics Corp is a MOSFET with Continous Drain Current 118 to 167 A, Drain Source Resistance 4.4 milli-ohm, Drain Source Breakdown Voltage 150 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 2 to 4 V. Tags: Surface Mount. More details for AP15NA4R4TL can be seen below.