The AP15TN1R5N from Advanced Power Electronics Corp is a MOSFET with Continous Drain Current 0.48 to 0.6 A, Drain Source Resistance 1.5 to 1.8 ohm, Drain Source Breakdown Voltage 150 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 0.8 to 2.5 V. Tags: Surface Mount. More details for AP15TN1R5N can be seen below.