The SiR800DP-T1-GE3 from Vishay is a MOSFET with Continous Drain Current 50 A, Drain Source Resistance 1.9 to 3.4 milliohm, Drain Source Breakdown Voltage 20 V, Gate Source Voltage -12 to 12 V, Gate Source Threshold Voltage 0.6 to 1.5 V. Tags: Surface Mount. More details for SiR800DP-T1-GE3 can be seen below.