The Si2387DS from Vishay is a MOSFET with Continous Drain Current -3 A, Drain Source Resistance 137 to 242 milliohm, Drain Source Breakdown Voltage -80 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage -1.5 to -2.5 V. Tags: Surface Mount. More details for Si2387DS can be seen below.