The Si1443EDH from Vishay is a MOSFET with Continous Drain Current -4 A, Drain Source Resistance 43 to 85 milliohm, Drain Source Breakdown Voltage -30 V, Gate Source Voltage -12 to 12 V, Gate Source Threshold Voltage -0.6 to -1.5 V. Tags: Surface Mount. More details for Si1443EDH can be seen below.