The DI040N03PT-AQ from Diotec Semiconductor is a MOSFET with Continous Drain Current 40 A, Drain Source Resistance 6 to 11 milliohm, Drain Source Breakdown Voltage 30 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1 to 2.5 V. Tags: Surface Mount. More details for DI040N03PT-AQ can be seen below.