The FBG04N08A from EPC Space is a GaN Power Transistor with Gate Threshold Voltage 0.8 to 2.5 V, Drain Source Voltage 40 V, Drain Source Resistance 24 to 28 milli-ohm, Continous Drain Current 8 A, Pulsed Drain Current 32 A. Tags: Surface Mount. More details for FBG04N08A can be seen below.