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M4Z28-BR00SH1TR Datenblatt(Datasheet) 5 Page - STMicroelectronics

Teile-Nr. M4Z28-BR00SH1TR
Beschreibung  ZEROPOWER SNAPHAT (BATTERY)
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Hersteller  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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M4Z28-BR00SH, M4Z32-BR00SH
MECHANICAL INFORMATION
Electrical connection to the SOIC is made through
two pins that connect to the press fitted sockets at
one end of the SOIC. Critical contact points be-
tween the pins and sockets are gold-plated to re-
sist oxidation. Internally, each socket contains six
independent contact fingers to form redundant
connections between the two components. These
sockets were designed to provide high point con-
tact force to provide the lowest possible contact re-
sistance. The SNAPHAT® top also incorporates
four molded-in retaining clips which hold onto the
ends of the SOIC insuring mechanical and electri-
cal connection even under severe mechanical
shock and vibration. The combined SOIC and
SNAPHAT assembly can sustain shock levels in
excess of 100 g without separating. This package
also passes variable frequency testing in accor-
dance with MIL-STD-883, method 2007.2, condi-
tion A.
Figure 3 illustrates the affect of repeated insertion
and extraction of the SNAPHAT top to the SOIC.
The force required to extract the SNAPHAT, and
then to re-insert it, reduces each time. After four or
five extractions, the reduction starts to become
unnoticeable and the force required remains at a
fairly constant figure. Typically, though, the
SNAPHAT will only need to be extracted and re-
inserted once in its lifetime.
Figure 3. SNAPHAT Insertion/Extraction Forces
0
2.5
5
7.5
10
12.5
15
1
234
5
6
789
10
Number of Extractions
Average Insertion
Average Extraction
AI02526




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