The DMN21D1UDA from Diodes Incorporated is a MOSFET with Continous Drain Current 0.455 A, Drain Source Resistance 500 to 2400 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 DMN21D1UDA can be seen below.