The Si5419DU from Vishay is a MOSFET with Continous Drain Current 12 A, Drain Source Resistance 16 to 33 Milliohm, Drain Source Breakdown Voltage -30 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage -2.5 to -1.2 V. Tags: Surface Mount. More details for Si5419DU can be seen below.