The SiSS42LDN-T1-GE3 from Vishay is a MOSFET with Continous Drain Current 39 A, Drain Source Resistance 12.2 to 18 milliohm, Drain Source Breakdown Voltage 100 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1 to 2.5 V. Tags: Surface Mount. More details for SiSS42LDN-T1-GE3 can be seen below.