STMicroelectronics M4T28-BR12SH1 SNAPHAT® Battery & Crystal

The M4T28-BR12SH1 is a detachable lithium power source in a SNAPHAT® package that combines a highly accurate quartz crystal and a long-life lithium battery. This innovative product from STMicroelectronics is designed to be mounted directly on top of a SNAPHAT® SOIC, providing a compact, integrated solution for real-time clock (RTC) and memory backup applications.

Key Features

• Integrated Package: The SNAPHAT® top contains both the battery and crystal, providing a complete solution for maintaining accurate timekeeping and data retention in the event of a primary power failure.
• Long Battery Life: The lithium battery has a typical life of over 10 years, ensuring reliable backup power over an extended period.
• High-Precision Crystal: The built-in 32.768 kHz quartz crystal offers high precision and stability, which is essential for real-time clock applications.
• Easy to Replace: The unique SNAPHAT® design allows for easy removal and replacement of the power source without having to desolder the base from the PCB.
• Leak-Proof Construction: The battery and crystal are encapsulated in a hermetically sealed package, preventing potential leakage and ensuring the integrity of the backup power supply.
• Compatibility: The M4T28-BR12SH1 is designed to mate with STMicroelectronics' SOIC package, making it suitable for a wide range of microcontroller and memory applications.

Applications

The M4T28-BR12SH1 is ideal for use in systems that require reliable timekeeping and data retention during power loss. Typical applications include:

• Embedded systems
• Utility meters
• Security systems
• Industrial controllers
• Medical devices
• Automotive electronics

With its combination of a maintenance-free battery and precision crystal, the M4T28-BR12SH1 is an excellent choice for designers looking to enhance the reliability and longevity of their systems. This product underscores STMicroelectronics' commitment to innovative solutions that meet the demands of modern electronic applications.