STMicroelectronics

M4T32-BR12SH1

M4T32-BR12SH1 Description

The M4T32-BR12SH1 from STMicroelectronics is a high-performance Snaphat® module combining a 32.768 kHz crystal oscillator with an integrated 120mAh lithium battery in a compact, surface-mountable package. Designed for real-time clock (RTC) backup applications, this device ensures reliable timekeeping and data retention during power interruptions. With a 2.8V operating voltage, 12.5 pF load capacitance, and a 0°C to 70°C operating temperature range, it delivers stable performance in demanding environments. The module is RoHS3 compliant, REACH unaffected, and features a Moisture Sensitivity Level (MSL) 1 rating, making it suitable for automated assembly processes.

M4T32-BR12SH1 Features

• Integrated Solution: Combines a 32.768 kHz crystal and 120mAh lithium battery in a single Snaphat® package, reducing board space and simplifying design.
• Extended Backup: The lithium battery ensures long-term RTC backup (typically 10+ years), critical for applications requiring persistent timekeeping.
• High Reliability: 12.5 pF load capacitance and ±20 ppm frequency stability ensure accurate timing under varying conditions.
• Robust Compliance: Meets ROHS3, REACH, and EAR99 standards, with MSL 1 for unrestricted shelf life and handling.
• Wide Operating Range: Functions reliably from 0°C to 70°C, ideal for industrial and consumer electronics.

M4T32-BR12SH1 Applications

• Industrial Automation: Ensures uninterrupted RTC operation in PLCs, sensors, and control systems.
• Medical Devices: Provides fail-safe timekeeping for patient monitors and diagnostic equipment.
• Consumer Electronics: Used in smart meters, set-top boxes, and appliances requiring battery-backed RTC.
• Telecom Infrastructure: Maintains timing synchronization in base stations and network switches during power cycles.

Conclusion of M4T32-BR12SH1

The M4T32-BR12SH1 stands out as a compact, high-reliability solution for RTC backup, offering superior integration, long battery life, and robust environmental compliance. Its Snaphat® design simplifies assembly, while the lithium battery ensures decades of maintenance-free operation. Ideal for mission-critical timing applications, this module is a preferred choice for engineers seeking performance, longevity, and ease of use in demanding electronic systems.