The SIR450DP-T1-RE3 from Vishay is a MOSFET with Continous Drain Current 113 A, Drain Source Resistance 1.5 to 2.55 milliohm, Drain Source Breakdown Voltage 45 V, Gate Source Voltage -16 to 20 V, Gate Source Threshold Voltage 1 to 2.3 V. Tags: Surface Mount. More details for SIR450DP-T1-RE3 can be seen below.