The G3404B from Goford Semiconductor is a MOSFET with Continous Drain Current 5.6 A, Drain Source Resistance 18 to 35 milliohm, Drain Source Breakdown Voltage 30 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1 to 2 V. Tags: Surface Mount. More details for G3404B can be seen below.