The SiA431DJ from Vishay is a MOSFET with Continous Drain Current -12 A, Drain Source Resistance 20 to 70 Milliohm, Drain Source Breakdown Voltage -20 V, Gate Source Voltage -8 to 8 V, Gate Source Threshold Voltage -0.8 to -0.4 V. Tags: Surface Mount. More details for SiA431DJ can be seen below.