The SiA447DJ from Vishay is a MOSFET with Continous Drain Current -12 A, Drain Source Resistance 11 to 71 Milliohm, Drain Source Breakdown Voltage -12 V, Gate Source Voltage -8 to 8 V, Gate Source Threshold Voltage -0.85 to -0.4 V. Tags: Surface Mount. More details for SiA447DJ can be seen below.