The Si1403BDL from Vishay is a MOSFET with Continous Drain Current -1.4 A, Drain Source Resistance 120 to 265 milliohm, Drain Source Breakdown Voltage -20 V, Gate Source Voltage -12 to 12 V, Gate Source Threshold Voltage -0.6 to -1.3 V. Tags: Surface Mount. More details for Si1403BDL can be seen below.