STMicroelectronics M4T32-BR12SH1 2.8V 120 mAh SNAPHAT Battery & Crystal Module – Backup RTC Power Solution
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Integrated lithium battery + 32.768 kHz crystal in a SNAPHAT® top, providing 2.8 V and 120 mAh capacity for backup applications.
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Designed for use on 28- or 44-pin SOIC TIMEKEEPER® packages; snaps on after surface-mount reflow to avoid battery heat damage.
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Crystal load capacitance of 12.5 pF, frequency tolerance of ±35 ppm at 25 °C — suitable for precision real-time clock modules.
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Mechanical footprint approx. 21.08 mm × 17.27 mm × 7.24 mm; keyed insertion for correct alignment and removal for replacement/disposal.
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Ideal for memory-retention and time-keeping in industrial controllers, telecom gear, IoT devices and embedded real-time clock circuits.
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STMicroelectronics M4T32-BR12SH1 2.8V 120 mAh SNAPHAT Battery & Crystal Module – Backup RTC Power Solution
The STMicroelectronics M4T32-BR12SH1 is a compact SNAPHAT top module combining a 2.8 V lithium back-up battery (120 mAh) and a 32.768 kHz timing crystal in a single easy-to-install package. Designed for use on ST’s TIMEKEEPER 28- or 44-pin SOIC devices, the module snaps on after the main PCB reflow process, thereby avoiding thermal stress on the battery and crystal. This dual-component design ensures continued time-keeping and non-volatile data retention in industrial, telecom or precision embedded systems even during board power loss.
With high precision timing (±35 ppm) and low standby power consumption, the M4T32-BR12SH1 is ideal for applications where reliable real-time clocks and memory backing are required. Its removable design supports replacement and proper disposal, while its RoHS-compliant, lead-free package supports modern manufacturing standards. From data loggers to automotive modules and IoT edge devices, this module delivers dependable backup power in a compact form factor.
M4T32-BR12SH1 Specifications:
- IC Function: Timekeeper (Battery & Crystal)
- Supply Voltage Range: 2.8V
- Capacity: 120mAh
- Operating Temperature Range: 0°C to +70°C
- Digital IC Case Style: SNAPHAT
- RoHS Compliant: Yes
M4T32-BR12SH1 Key Features:
- Provides battery backup power for serial real-time clock, non-volatile TIMEKEEPER and supervisor devices in the SNAPHAT®SOIC package
- Removable battery avoids heat associated with surface-mount process
- Snaps directly onto surface-mounted SNAPHAT SOIC
- Keyed insertion to ensure proper assembly
- Removable for replacement and proper disposal
Compatible Equipment / Applications:
- Real-time clock (RTC) backup in microcontroller-based industrial control systems.
- Non-volatile memory retention modules and data acquisition systems requiring a dedicated backup voltage.
- Telecom or IoT embedded devices where the board must maintain time, date or configuration during power loss.
- Automotive ECU boards using SNAPHAT®-type modules for RTC and battery backup.
- Any small form-factor PCB assembly using 28- or 44-pin TIMEKEEPER® SOIC devices that require a snap-on battery/crystal top.
| UPC | 813662028042 |
|---|---|
| Width | 0.68 |
| Height | 0.28 |
| Length | 0.83 |
| Condition | New |
| Chemistry | Lithium |
| Output Voltage | 2.8 |
| Amperage | 120mAh |
| Rechargeable | No |