The DMN1054UCB4 from Diodes Incorporated is a MOSFET with Continous Drain Current 4 A, Drain Source Resistance 35 to 110 milliohm, Drain Source Breakdown Voltage 8 V, Gate Source Voltage -5 to 5 V, Gate Source Threshold Voltage 0.35 to 0.7 V. Tags: Surface Mount. More details for DMN1054UCB4 can be seen below.