STMicroelectronics M4T28/M4T32-BR12SH SNAPHAT Battery/Crystal Datasheet

This datasheet provides details on the M4T28-BR12SH and M4T32-BR12SH, which are SNAPHAT® SOIC-packaged non-volatile TIMEKEEPER® and supervisor devices that provide battery backup power.

Brand: STMicroelectronics
Category: Other Electronics
Document type: Datasheet
Language: English
Pages: 16
File format: PDF
File size: 130 KB
Published: 09 August, 2012
Updated: 30 September, 2023
MD5 checksum: F81435BB4CEB615A16CCDC46D97C281C
PDF: STMicroelectronics M4T28/M4T32-BR12SH SNAPHAT Battery/Crystal Datasheet PDF

About this manual

The document details the M4T28-BR12SH (48 mAh) and M4T32-BR12SH (120 mAh) SNAPHAT tops, which provide battery backup power and a crystal oscillator for non-volatile TIMEKEEPER devices. These components are designed to snap directly onto surface-mounted SOIC packages after assembly to protect the battery from high temperatures during the soldering process.

What's inside

Description
Maximum ratings
DC and AC parameters
Mechanical information
Battery characteristics
UL recognition
Package mechanical data
Part numbering

Specifications

Nominal battery voltage (M4T28)	2.8 V
Nominal battery capacity (M4T32)	120 mAh
Crystal load capacitance	12.5 pF
Nominal crystal frequency	32.768 kHz

Frequently asked questions

What is the battery capacity of the M4T28-BR12SH?

The M4T28-BR12SH has a nominal battery capacity of 48 mAh.

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