The TP90H050WS from Transphorm is a GaN Power Transistor with Gate Threshold Voltage 3.4 to 4.4 V, Drain Source Voltage 900 V, Drain Source Resistance 50 to 105 milli-ohm, Continous Drain Current 22 to 34 A, Pulsed Drain Current 150 A. Tags: Through Hole. More details for TP90H050WS can be seen below.