STMicroelectronics M4T28-BR12SH1, Lithium Battery Charger IC, 2.8 V 4-Pin, SNAPHAT

Product overview and Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
Product Details

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.

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.

• Lithium power source
• Snap-on package
• Keyed insertion for proper assembly
• Battery Capacity: 48mAh
• Non-rechargeable
• Pb-free package


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

Attribute Value
Battery Type Lithium-CF
Mounting Type Through Hole
Package Type SNAPHAT
Pin Count 4
Typical Operating Supply Voltage 2.8 V
Dimensions 21.84 x 14.99 x 7.75mm
Length 21.84mm
Width 14.99mm
Height 7.75mm
Maximum Operating Temperature +70 °C
Minimum Operating Temperature 0 °C
345 In stock for delivery within 3 working days
Price Each (In a Tube of 23)
HK$ 38.16
(exc. GST)
Per unit
Per Tube*
23 - 23
46 - 69
92 - 207
230 - 437
460 +
*price indicative
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