The SiZ346DT-T1-GE3 from Vishay is a MOSFET with Continous Drain Current 6.3 to 30 A, Drain Source Resistance 8.4 to 37 milliohm, Drain Source Breakdown Voltage 30 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1.1 to 2.4 V. Tags: Surface Mount. More details for SiZ346DT-T1-GE3 can be seen below.