The Si1401EDH from Vishay is a MOSFET with Continous Drain Current 4 A, Drain Source Resistance 28 to 110 milliohm, Drain Source Breakdown Voltage -12 V, Gate Source Voltage -10 to 10 V, Gate Source Threshold Voltage -0.4 to -1 V. Tags: Surface Mount. More details for Si1401EDH can be seen below.