The SiA436DJ from Vishay is a MOSFET with Continous Drain Current 12 A, Drain Source Resistance 7.8 to 36 Milliohm, Drain Source Breakdown Voltage 8 V, Gate Source Voltage -5 to 5 V, Gate Source Threshold Voltage 0.35 to 0.8 V. Tags: Surface Mount. More details for SiA436DJ can be seen below.