STMicroelectronics, Battery Backup IC Lithium-CF, 2.8 V to 2.8 V Input, SNAPHAT 4-Pin

This image is representative of the product range

View all Battery Management

Subtotal (1 tube of 23 units)*

PHP9,466.731

(exc. VAT)

PHP10,602.747

(inc. VAT)

Add to Basket
Select or type quantity
In Stock
  • Plus 46 unit(s) shipping from March 02, 2026
  • Plus 1,403 unit(s) shipping from March 09, 2026
  • Plus 414 unit(s) shipping from June 10, 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units
Per Unit
Per Tube*
23 +PHP411.597PHP9,466.73

*price indicative

RS Stock No.:
920-6358
Mfr. Part No.:
M4T28-BR12SH1
Manufacturer:
STMicroelectronics
Find similar products by selecting one or more attributes.
Select all

Brand

STMicroelectronics

Sub Type

Battery Backup IC

Product Type

Battery Backup IC

Battery Type

Lithium-CF

Mount Type

Through Hole

Package Type

SNAPHAT

Pin Count

4

Minimum Supply Voltage

2.8V

Maximum Supply Voltage

2.8V

Maximum Operating Temperature

70°C

Height

7.75mm

Width

14.99 mm

Series

M4T28-BR12SH

Minimum Operating Temperature

0°C

Length

21.84mm

Standards/Approvals

No

Automotive Standard

No

M4Txx-BR12SH SNAPHAT


The STMicroelectronics M4T28-BR12SH1 is a battery and crystal within a detachable SNAPHAT package. The SNAPHAT package snaps onto the PCB, directly on top of an SMD SOIC package. This lithium power source is removable which avoids potential issues caused by the heat in surface mounting processes. The M4T28-BR12SH1 works with the ST range of serial real-time clock and non-volatile TIMEKEEPER® SOIC packages, in 28 or 44 pin variants.

The M4T28-BR12SH1 contains a BR1225 48mAh, 3V battery which can be used in temperatures from 0°C to +70°C.

Features and Benefits


  • Provides battery backup power for serial real-time clock, non-volatile TIMEKEEPER®and supervisor devices in the 28- or 44-pin SNAPHAT®SOIC package

  • Removable battery avoids heat associated with surface-mount process

  • Snaps directly onto surface-mounted SNAPHAT SOIC

  • Choice of battery capacities:

    • - M4T28-BR12SH = 48 mAh

    - M4T32-BR12SH = 120 mAh

  • Keyed insertion to ensure proper assembly

  • Removable for replacement and proper disposal

  • Pb-free package

  • Available in Ecopack®packages, tubes

    • SNAPHAT® Lithium Coin Cell Battery with Crystal, STMicroelectronics


    These Battery and Crystal Option devices are detachable lithium power sources housed in special top called SNAPHAT®. The SNAPHAT is snapped on the top of the surface-mounted IC in the Printed Circuit board. Also compatible with the non-volatile TIMEKEEPER® package by STMicroelectronics.

    Note

    Recycle or dispose of batteries in accordance with the battery manufacturer's instructions and local/national disposal and recycling regulations.

    Related links