The AP3R303GMT-L from Advanced Power Electronics Corp is a MOSFET with Continous Drain Current 25 to 105 A, Drain Source Resistance 3.3 to 4.5 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 AP3R303GMT-L can be seen below.