The DMT4031LSD from Diodes Incorporated is a MOSFET with Continous Drain Current 6.3 A, Drain Source Resistance 18 to 41 milliohm, Drain Source Breakdown Voltage 40 V, Gate Source Voltage -12 to 12 V, Gate Source Threshold Voltage 1.2 to 2.5 V. Tags: Surface Mount. More details for DMT4031LSD can be seen below.