The EPC2012C from Efficient Power Conversion is a GaN Power Transistor with Gate Threshold Voltage 0.8 to 2.5 V, Drain Source Voltage 200 V, Drain Source Resistance 70 to 100 milli-ohm, Continous Drain Current 5 A, Pulsed Drain Current 22 A. Tags: Die. More details for EPC2012C can be seen below.