The SiUD412ED-T1-GE3 from Vishay is a MOSFET with Continous Drain Current 0.5 A, Drain Source Resistance 270 to 250 milliohm, Drain Source Breakdown Voltage 12 V, Gate Source Voltage -5 to 5 V, Gate Source Threshold Voltage 0.35 to 0.9 V. Tags: Surface Mount. More details for SiUD412ED-T1-GE3 can be seen below.