The IRF830AS from Vishay is a MOSFET with Continous Drain Current 5 A, Drain Source Resistance 1400 milliohm, Drain Source Breakdown Voltage 500 V, Gate Source Voltage -30 to 30 V, Gate Source Threshold Voltage 2 to 4.5 V. Tags: Through Hole, Surface Mount. More details for IRF830AS can be seen below.