The BUL381 is a high voltage fast-switching NPN power transistor from STMicroelectronics, designed to suit a wide array of applications requiring high voltage capability and fast switching performance. This semiconductor device is part of STMicroelectronics' innovative portfolio of power transistors, which are renowned for their reliability and efficiency.

Key Features

• High Voltage Capacity: The BUL381 is capable of withstanding voltages up to 450V, making it suitable for high voltage applications.
• High Current Rating: This power transistor can handle a significant amount of current, with a collector current (Ic) rating of 5A, ensuring robust performance in demanding situations.
• Fast Switching Speed: With a fast switching speed, the BUL381 is able to switch on and off rapidly, which is crucial for applications requiring high frequency operation.
• Low Saturation Voltage: The device exhibits low collector-emitter saturation voltage, which helps to reduce power losses and improve overall efficiency.
• High Ruggedness: It is designed to be rugged, which means it can endure tough conditions without performance degradation.

Applications

The versatility of the BUL381 makes it ideal for a variety of applications, including:

• Electronic Ballasts for Fluorescent Lighting
• Switching Power Supplies
• Motor Control Circuits
• High-Frequency Inverters
• Converter Circuits

Quality and Reliability

STMicroelectronics is committed to delivering high-quality products. The BUL381 is manufactured to meet the highest standards of quality and reliability. It is designed to ensure a long operational life even under the most demanding conditions, making it a trusted choice for engineers and product designers across various industries.

Environmental Compliance

In line with STMicroelectronics' commitment to environmental sustainability, the BUL381 is produced with eco-friendly materials and processes, adhering to international environmental regulations. It is RoHS compliant, ensuring that it is free from hazardous substances and suitable for use in green applications.