The Si4116DY from Vishay is a MOSFET with Continous Drain Current 18 A, Drain Source Resistance 7.1 to 11.5 milliohm, Drain Source Breakdown Voltage 25 V, Gate Source Voltage -12 to 12 V, Gate Source Threshold Voltage 0.6 to 1.4 V. Tags: Surface Mount. More details for Si4116DY can be seen below.