The G3N50 from Goford Semiconductor is a MOSFET with Continous Drain Current 3 A, Drain Source Resistance 2400 to 3000 milliohm, Drain Source Breakdown Voltage 500 V, Gate Source Voltage -30 to 30 V, Gate Source Threshold Voltage 2 to 4 V. Tags: Through Hole. More details for G3N50 can be seen below.