The SIR4604DP-T1-GE3 from Vishay is a MOSFET with Continous Drain Current 49.3 A, Drain Source Resistance 7.9 to 12.4 milliohm, Drain Source Breakdown Voltage 60 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 2 to 4 V. Tags: Surface Mount. More details for SIR4604DP-T1-GE3 can be seen below.