The GPI65010DF56 from GaNPower International is a GaN Power Transistor with Gate Threshold Voltage 0.9 to 2.9 V, Drain Source Voltage 650 V, Drain Source Resistance 87 to 162 milli-ohm, Continous Drain Current 10 A, Total Charge 2.6 nC. Tags: Surface Mount. More details for GPI65010DF56 can be seen below.