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

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.

M4Txx-BR12SH SNAPHAT

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.

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

Specifications
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
207 In stock for delivery within 3 working days
Price Each (In a Tube of 23)
SGD 7.036
(exc. GST)
SGD 7.529
(inc. GST)
units
Per unit
Per Tube*
23 - 23
SGD7.036
SGD161.828
46 - 69
SGD6.801
SGD156.423
92 - 207
SGD6.595
SGD151.685
230 - 437
SGD6.369
SGD146.487
460 +
SGD6.195
SGD142.485
*price indicative
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