The G8N03 from Goford Semiconductor is a MOSFET with Continous Drain Current 8 A, Drain Source Resistance 9 to 16 milliohm, Drain Source Breakdown Voltage 30 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1 to 3 V. Tags: Surface Mount. More details for G8N03 can be seen below.