The SiA430DJT from Vishay is a MOSFET with Continous Drain Current 12 A, Drain Source Resistance 10.8 to 18.5 Milliohm, Drain Source Breakdown Voltage 20 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1 to 3 V. Tags: Surface Mount. More details for SiA430DJT can be seen below.