The AP3P048N from Advanced Power Electronics Corp is a MOSFET with Continous Drain Current -3.5 to -4.4 A, Drain Source Resistance 48 to 80 milli-ohm, Drain Source Breakdown Voltage -30 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage -1 to -3 V. Tags: Surface Mount. More details for AP3P048N can be seen below.