The Si8466EDB from Vishay is a MOSFET with Continous Drain Current 5.4 A, Drain Source Resistance 35 to 90 Milliohm, Drain Source Breakdown Voltage 8 V, Gate Source Voltage -5 to 5 V, Gate Source Threshold Voltage 0.35 to 0.7 V. Tags: Surface Mount. More details for Si8466EDB can be seen below.