M4T28-BR12SH

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SNAPHAT® 48 mAh lithium coin cell battery with crystal

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  • The M4Txx-BR12SH SNAPHAT®top is a detachable lithium power source for ST’s serial real-time clock and non-volatile TIMEKEEPER®surface-mount SOIC package (28- and 44-pin).

    The SNAPHAT top contains both the battery and crystal and is designed to be “snapped on” after the SOIC is surface mounted on the PC board. Thus the two-piece solution prevents the battery and crystal from being exposed to the high temperatures of the surface-mount process.

    Key Features

    • 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

Recommended for you

00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DS5067
      Real-time clock and TIMEKEEPER® SNAPHAT® battery with crystal
      4.1
      312.33 KB
      PDF
      DS5067

      Real-time clock and TIMEKEEPER® SNAPHAT® battery with crystal

    • Description Version Size Action
      AN1012
      Predicting the battery life and data retention period of NVRAMs and serial RTCs
      4.1
      439.45 KB
      PDF
      AN1012

      Predicting the battery life and data retention period of NVRAMs and serial RTCs

Publications and Collaterals

    • Description Version Size Action
      Serial real-time clock ICs 1.0
      827.11 KB
      PDF

      Serial real-time clock ICs

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
M4T28-BR12SH1
Active
1225 SNAPHAT Industrial Ecopack1

M4T28-BR12SH1

Package:

1225 SNAPHAT

Material Declaration**:

PDF XML

Marketing Status

Active

Package

1225 SNAPHAT

Grade

Industrial

RoHS Compliance Grade

Ecopack1

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

Sample & Buy

Part Number
Order from Distributors
Order from ST
Package
Packing Type
Marketing Status
ECCN (US)
Country of Origin
Budgetary Price (US$)*/Qty
M4T28-BR12SH1 Available at 9 distributors

Distributor availability ofM4T28-BR12SH1

Distributor Name
Region Stock Min. Order Third party link
COMPEL EUROPE 230 1 Order Now
RS COMPONENTS EUROPE 1720 23 Order Now
ARROW EUROPE 853 0 Order Now
Newark Element14 AMERICA 1654 0 Order Now
ARROW AMERICA 393 690 Order Now
MOUSER WORLDWIDE 1508 1 Order Now
Farnell Element14 EUROPE 1554 1 Order Now
ANGLIA Live EUROPE 638 1 Order Now
RUTRONIK EUROPE 92 23 Order Now

Distributor reported inventory date: 2020-06-29

Distributor Name

COMPEL

Stock

230

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

1720

Min.Order

23

Region

EUROPE Order Now

ARROW

Stock

853

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

1654

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

393

Min.Order

690

Region

AMERICA Order Now

MOUSER

Stock

1508

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1554

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

638

Min.Order

1

Region

EUROPE Order Now

RUTRONIK

Stock

92

Min.Order

23

Region

EUROPE Order Now

Distributor reported inventory date: 2020-06-29

Buy now 1225 SNAPHAT Tube
Active
EAR99 MALAYSIA

M4T28-BR12SH1

Package

1225 SNAPHAT

Packing Type

Tube

Budgetary Price (US$)*/Qty

Distributor availability ofM4T28-BR12SH1

Distributor Name
Region Stock Min. Order Third party link
COMPEL EUROPE 230 1 Order Now
RS COMPONENTS EUROPE 1720 23 Order Now
ARROW EUROPE 853 0 Order Now
Newark Element14 AMERICA 1654 0 Order Now
ARROW AMERICA 393 690 Order Now
MOUSER WORLDWIDE 1508 1 Order Now
Farnell Element14 EUROPE 1554 1 Order Now
ANGLIA Live EUROPE 638 1 Order Now
RUTRONIK EUROPE 92 23 Order Now

Distributor reported inventory date: 2020-06-29

Distributor Name

COMPEL

Stock

230

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

1720

Min.Order

23

Region

EUROPE Order Now

ARROW

Stock

853

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

1654

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

393

Min.Order

690

Region

AMERICA Order Now

MOUSER

Stock

1508

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1554

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

638

Min.Order

1

Region

EUROPE Order Now

RUTRONIK

Stock

92

Min.Order

23

Region

EUROPE Order Now

Distributor reported inventory date: 2020-06-29

Marketing Status

Active

Budgetary Price (US$)* / Qty

ECCN (US)

EAR99

Country of Origin

MALAYSIA

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors