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Product Variant Information section
Product Specification Section
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Stock: 0

On Order: 0
Factory Stock:Factory Stock: 0
Factory Lead Time: 12 Weeks
Minimum Order: 690
Multiple Of: 690
Quantity Web Price
690+ $2.44


Attributes Table
Chemistry Lithium Metal
Rated Voltage 2.8V
Capacity 48mAh
Features and Applications

All lithium (primary and rechargeable) batteries are subject to various transportation regulations. Learn More

The M4Z28-BR00SH1 is a part of M4Z28 series Battery Backed SRAM.It has an operating temperature ranging from -40 °C to +85 °C and it comes in SOIC Packaging.

The M4Zxx-BR00SH SNAPHAT® top is a detachable lithium power source for ST’s nonvolatile ZEROPOWER® surface-mount SOIC (MH) package (28-pin).

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


  • Provides battery backup power for non-volatile ZEROPOWER® and supervisor devices in the 28-pin SNAPHAT® SOIC package
  • Removable battery avoids heat associated with surface-mount process
  • Snaps directly onto surface-mounted SNAPHAT® SOIC
  • Choice of battery capacities
    • M4Z28-BR00SH = 48 mAh
  • Keyed insertion to insure proper assembly
  • Removable for replacement and proper disposal
  • Pb-free package
  • Available in tubes or tape & reel