The SiR870BDP-T1-RE3 from Vishay is a MOSFET with Continous Drain Current 81 A, Drain Source Resistance 4.8 to 7.7 milliohm, Drain Source Breakdown Voltage 100 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1 to 3 V. Tags: Surface Mount. More details for SiR870BDP-T1-RE3 can be seen below.