The EPC2101 from Efficient Power Conversion is a GaN Power Transistor with Gate Threshold Voltage 0.8 to 2.5 V, Drain Source Voltage 60 V, Drain Source Resistance 2 to 11.5 milli-ohm, Continous Drain Current 10 to 40 A, Pulsed Drain Current 80 to 350 A. Tags: Die. More details for EPC2101 can be seen below.