The SiA483DJ from Vishay is a MOSFET with Continous Drain Current -12 A, Drain Source Resistance 16 to 30 Milliohm, Drain Source Breakdown Voltage -30 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage -2.2 to -1 V. Tags: Surface Mount. More details for SiA483DJ can be seen below.