Overview
The M4T32-BR12SH1 is a detachable lithium power source designed by STMicroelectronics for their serial real-time clock and non-volatile TIMEKEEPER surface-mount SOIC packages. This component is part of the SNAPHAT® family, which includes a battery and crystal, and is specifically tailored to avoid exposure to high temperatures during the surface-mount process. The M4T32-BR12SH1 is particularly suited for applications requiring reliable battery backup power in 28- or 44-pin SOIC packages.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Part Number | M4T32-BR12SH1 | - |
| Battery Capacity | 120 | mAh |
| Battery Chemistry | Lithium Carbon Monofluoride (Li(CF)) | - |
| Nominal Battery Voltage | 3 | V |
| Crystal Frequency | 32.768 | kHz |
| Crystal Accuracy (at 25°C) | ±35 | ppm |
| Operating Temperature Range | –40 to 85°C (Grade 6) | °C |
| Package Type | 1632 SNAPHAT | - |
| RoHS Compliance Grade | Ecopack1 | - |
Key Features
- Provides battery backup power for serial real-time clock, non-volatile TIMEKEEPER, and supervisor devices in 28- or 44-pin SNAPHAT SOIC packages.
- Removable battery avoids heat associated with the surface-mount process.
- Snaps directly onto surface-mounted SNAPHAT SOIC.
- Keyed insertion to ensure proper assembly.
- Removable for replacement and proper disposal.
- Pb-free package.
- Available in Ecopack packages and tubes.
Applications
The M4T32-BR12SH1 is ideal for various applications requiring reliable and long-lasting battery backup power, such as:
- Real-time clock systems.
- Non-volatile memory devices.
- Supervisor circuits in industrial and consumer electronics.
- Embedded systems requiring precise timekeeping and data retention during power outages.
Q & A
- What is the M4T32-BR12SH1 used for?
The M4T32-BR12SH1 is used to provide battery backup power for serial real-time clock, non-volatile TIMEKEEPER, and supervisor devices in 28- or 44-pin SNAPHAT SOIC packages.
- What is the battery capacity of the M4T32-BR12SH1?
The battery capacity of the M4T32-BR12SH1 is 120 mAh.
- What is the nominal battery voltage of the M4T32-BR12SH1?
The nominal battery voltage is 3 V.
- What is the crystal frequency of the M4T32-BR12SH1?
The crystal frequency is 32.768 kHz.
- What are the operating temperature ranges for the M4T32-BR12SH1?
The operating temperature range is –40 to 85°C (Grade 6).
- Is the M4T32-BR12SH1 RoHS compliant?
- How is the M4T32-BR12SH1 attached to the SOIC package?
The M4T32-BR12SH1 snaps directly onto the surface-mounted SNAPHAT SOIC package.
- Can the battery be replaced in the M4T32-BR12SH1?
- What precautions should be taken when handling the M4T32-BR12SH1?
Avoid applying excessive force during insertion (no more than 40 pounds), and do not wave solder the SOIC to avoid damaging the SNAPHAT sockets.
- Is the M4T32-BR12SH1 free from hazardous materials?
