The Si3453DV from Vishay is a MOSFET with Continous Drain Current -3.4 A, Drain Source Resistance 137 to 276 milliohm, Drain Source Breakdown Voltage -30 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage -1.2 to -2.5 V. Tags: Surface Mount. More details for Si3453DV can be seen below.