The BU941P is a high voltage, high current NPN transistor from STMicroelectronics specifically designed to handle the demands of ignition systems in automotive applications. This robust power transistor is capable of driving ignition coils directly, making it an integral component for electronic ignition systems that require high efficiency and reliability.

Key Features

• High Collector-Emitter Voltage (Vceo): With a rating of 350V, the BU941P can easily handle the voltage spikes typically found in ignition systems.
• High Collector Current (Ic): It supports a continuous collector current up to 15A, ensuring it can drive most ignition coils without additional components.
• Integrated Protection Diode: An integrated diode between the collector and emitter provides protection against reverse voltage transients, which are common in automotive environments.
• High Ruggedness: Its rugged design allows the BU941P to withstand harsh automotive conditions, contributing to the longevity of the ignition system.
• Fast Switching Speed: The device is optimized for fast switching, improving the overall efficiency of the ignition system.

Applications

The BU941P transistor is primarily used in automotive ignition systems but is also suitable for other high voltage applications such as:

• Electronic ignitions for gasoline engines
• Ignition circuits for race cars
• High voltage switching for industrial applications

Product Specifications

Whether you're designing a new ignition system or upgrading an existing one, the BU941P from STMicroelectronics offers the performance and durability needed for high-efficiency, high-reliability automotive applications.