The GPIXU30SB5L from GaNPower International is a GaN Power Transistor with Gate Threshold Voltage 0.9 to 2.5 V, Drain Source Voltage 1200 V, Drain Source Resistance 52 to 76 milli-ohm, Continous Drain Current 30 A, Total Charge 8.25 nC. Tags: Surface Mount. More details for GPIXU30SB5L can be seen below.