The SiRA18BDP-T1-GE3 from Vishay is a MOSFET with Continous Drain Current 40 A, Drain Source Resistance 5.5 to 10.5 milliohm, Drain Source Breakdown Voltage 30 V, Gate Source Voltage -16 to 20 V, Gate Source Threshold Voltage 1.2 to 2.4 V. Tags: Surface Mount. More details for SiRA18BDP-T1-GE3 can be seen below.