The DMN6040SK3 from Diodes Incorporated is a MOSFET with Continous Drain Current 6.3 A, Drain Source Resistance 30 to 50 milliohm, Drain Source Breakdown Voltage 60 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1 to 3 V. Tags: Surface Mount. More details for DMN6040SK3 can be seen below.