The Si4168DY from Vishay is a MOSFET with Continous Drain Current 24 A, Drain Source Resistance 4.7 to 7.6 milliohm, Drain Source Breakdown Voltage 30 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1 to 3 V. Tags: Surface Mount. More details for Si4168DY can be seen below.