The EPC2105 from Efficient Power Conversion is a GaN Power Transistor with Gate Threshold Voltage 0.8 to 2.5 V, Drain Source Voltage 80 V, Drain Source Resistance 2.4 to 14.5 milli-ohm, Continous Drain Current 10 to 40 A, Pulsed Drain Current 70 to 300 A. Tags: Die. More details for EPC2105 can be seen below.