The DMN2056U from Diodes Incorporated is a MOSFET with Continous Drain Current 4 A, Drain Source Resistance 30 to 85 milliohm, Drain Source Breakdown Voltage 20 V, Gate Source Voltage -8 to 8 V, Gate Source Threshold Voltage 0.4 to 1 V. Tags: Surface Mount. More details for DMN2056U can be seen below.