The BU323ZG is a 350V Silicon NPN Bipolar Darlington Power Transistor with a built-in active Zener clamping circuit. The transistor is specifically designed for unclamped, inductive applications such as electronic ignition, switching regulators and motor control.
Integrated high voltage active clamp
Tight clamping voltage window guaranteed
Clamping energy capability 100% tested in a live ignition circuit