The GPI90005DF88 from GaNPower International is a GaN Power Transistor with Gate Threshold Voltage 0.9 to 2.9 V, Drain Source Voltage 900 V, Drain Source Resistance 235 to 580 milli-ohm, Continous Drain Current 5 A, Pulsed Drain Current 11 A. Tags: Surface Mount. More details for GPI90005DF88 can be seen below.