The TP65H150G4LSG-TR from Transphorm is a GaN Power Transistor with Gate Threshold Voltage 3.3 to 4.8 V, Drain Source Voltage 650 V, Drain Source Resistance 150 to 307 milli-ohm, Continous Drain Current 13 A, Pulsed Drain Current 60 A. Tags: Surface Mount. More details for TP65H150G4LSG-TR can be seen below.