The IRF830L from Vishay is a MOSFET with Continous Drain Current 4.5 A, Drain Source Resistance 1500 milliohm, Drain Source Breakdown Voltage 500 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 2 to 4 V. Tags: Surface Mount. More details for IRF830L can be seen below.