STMicroelectronics

MJE172

MJE172 Description

The MJE172 is a PNP bipolar junction transistor manufactured by STMicroelectronics. It features an operating temperature of 150°C, a transition frequency of 50MHz, and a maximum collector current of 3A. The MJE172 has a Vce saturation of 1.7V at 600mA and 3A, and a collector-emitter breakdown voltage of 80V. It is packaged in a through-hole SOT32-3 tube package and is compliant with RoHS3.

MJE172 Features

Key features of the MJE172 include:

• High operating temperature of 150°C for reliable performance in harsh environments
• 50MHz transition frequency for fast switching in high-speed applications
• 3A maximum collector current for high-power applications
• Low Vce saturation of 1.7V for efficient power management
• 80V collector-emitter breakdown voltage for robust operation
• Through-hole SOT32-3 packaging for easy installation and replacement
• RoHS3 compliance for environmentally friendly manufacturing

MJE172 Applications

The MJE172 is ideal for a variety of applications where high power, speed, and reliability are required. Some specific use cases include:

1. Power amplifiers and switching circuits in consumer electronics
2. Motor control and drive systems in industrial automation
3. High-temperature sensor interfaces in automotive and aerospace applications
4. Audio and video signal processing in professional audio/video equipment

Conclusion of MJE172

The MJE172 is a high-performance PNP bipolar junction transistor that offers a unique combination of power, speed, and reliability. Its high operating temperature, fast transition frequency, and low Vce saturation make it an excellent choice for demanding applications in consumer electronics, industrial automation, automotive, and professional audio/video equipment. While the MJE172 is now considered obsolete, it remains a popular choice for legacy designs and applications where its unique features are still required.