The SiS990DN-T1-GE3 from Vishay is a MOSFET with Continous Drain Current 12.1 A, Drain Source Resistance 71 to 105 milliohm, Drain Source Breakdown Voltage 100 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 2.5 to 4 V. Tags: Surface Mount. More details for SiS990DN-T1-GE3 can be seen below.