NPN Silicon Power Darlington High Voltage Autoprotected

The BU323Z is a planar, monolithic, high−voltage power Darlington with a built−in active zener clamping circuit. This device is specifically designed for unclamped, inductive applications such as Electronic Ignition, Switching Regulators and Motor Control, and exhibit the following main features:

• Integrated High−Voltage Active Clamp
• Tight Clamping Voltage Window (350 V to 450 V) Guaranteed Over the −40°C to +125°C Temperature Range
• Clamping Energy Capability 100% Tested in a Live Ignition Circuit
• High DC Current Gain/Low Saturation Voltages Specified Over Full Temperature Range
• Design Guarantees Operation in SOA at All Times
• Offered in Plastic SOT−93/TO−218 Type or TO−220 Packages
• This device is available in Pb−free package(s). Specifications herein apply to both standard and Pb−free devices. Please see our website at www.onsemi.com for specific Pb−free orderable part numbers, or contact your local ON Semiconductor sales office or representative.