The SiA108DJ from Vishay is a MOSFET with Continous Drain Current 12 A, Drain Source Resistance 32 to 46 Milliohm, Drain Source Breakdown Voltage 80 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 2 to 4 V. Tags: Surface Mount. More details for SiA108DJ can be seen below.