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

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Subtotal (1 tube of 23 units)*

£122.13

(exc. VAT)

£146.51

(inc. VAT)

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  • Plus 437 unit(s) shipping from 27 April 2026
  • Plus 23 unit(s) shipping from 27 April 2026
  • Plus 414 unit(s) shipping from 04 May 2026
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Units
Per unit
Per Tube*
23 - 23£5.31£122.13
46 - 69£5.166£118.82
92 - 207£5.03£115.69
230 - 437£4.901£112.72
460 +£4.779£109.92

*price indicative

RS Stock No.:
920-6358
Mfr. Part No.:
M4T28-BR12SH1
Brand:
STMicroelectronics
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Brand

STMicroelectronics

Product Type

Battery Backup IC

Battery Type

Lithium-CF

Sub Type

Battery Backup IC

Mount Type

Through Hole

Package Type

SNAPHAT

Pin Count

4

Minimum Supply Voltage

2.8V

Maximum Operating Temperature

70°C

Maximum Supply Voltage

2.8V

Standards/Approvals

No

Minimum Operating Temperature

0°C

Series

M4T28-BR12SH

Length

21.84mm

Height

7.75mm

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.

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