STMicroelectronics M4T28-BR12SH1, Battery Backup IC, 2.8 V 4-Pin, SNAPHAT
- RS Stock No.:
- 920-6358
- Mfr. Part No.:
- M4T28-BR12SH1
- Brand:
- STMicroelectronics
Bulk discount available
Subtotal (1 tube of 23 units)*
£144.739
(exc. VAT)
£173.696
(inc. VAT)
FREE delivery for orders over £50.00
In Stock
- 115 unit(s) ready to ship
- Plus 69 unit(s) ready to ship from another location
- Plus 161 unit(s) shipping from 31 October 2025
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units | Per unit | Per Tube* |
|---|---|---|
| 23 - 23 | £6.293 | £144.74 |
| 46 - 69 | £6.123 | £140.83 |
| 92 - 207 | £5.962 | £137.13 |
| 230 - 437 | £5.809 | £133.61 |
| 460 + | £5.664 | £130.27 |
*price indicative
- RS Stock No.:
- 920-6358
- Mfr. Part No.:
- M4T28-BR12SH1
- Brand:
- STMicroelectronics
Specifications
Technical Reference
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| Brand | STMicroelectronics | |
| Battery Type | Lithium-CF | |
| Mounting Type | Through Hole | |
| Package Type | SNAPHAT | |
| IC Type | Battery Backup IC | |
| 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 | |
Select all | ||
|---|---|---|
Brand STMicroelectronics | ||
Battery Type Lithium-CF | ||
Mounting Type Through Hole | ||
Package Type SNAPHAT | ||
IC Type Battery Backup IC | ||
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 | ||
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.
M4Txx-BR12SH SNAPHAT
The M4Txx-BR12SH SNAPHAT®top is a detachable lithium power source for STs 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.
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.
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
Related links
- STMicroelectronics M4T28-BR12SH1 2.8 V 4-Pin, SNAPHAT
- STMicroelectronics M4Z32-BR00SH1 2.8 V 4-Pin, SNAPHAT
- STMicroelectronics M4Z28-BR00SH1 2.8 V 4-Pin, SNAPHAT
- STMicroelectronics M4T32-BR12SH1 SNAPHAT
- STMicroelectronics M4T32-BR12SH6 3 V 4-Pin, SNAPHAT
- STMicroelectronics L9963T-TR 18mA 64-Pin, SO16N
- ROHM BD7220FV-CE2 5.5 V 20-Pin, SSOP-B20
- Battery Management
