The DMN3009SK3 from Diodes Incorporated is a MOSFET with Continous Drain Current 20 A, Drain Source Resistance 2.5 to 9 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 DMN3009SK3 can be seen below.