M4Z28-BR00SH データシートの表示（PDF） - STMicroelectronics

部品番号

コンポーネント説明

メーカー

M4Z28-BR00SH

ZEROPOWER® SNAPHAT®(battery)

STMicroelectronics 

Mechanical information

2

Mechanical information

M4Z28-BR00SH, M4Z32-BR00SH

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 between the pins and sockets are

gold-plated to resist 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 contact force to provide the lowest possible contact

resistance. The SNAPHAT® top also incorporates four molded-in retaining clips which hold

onto the ends of the SOIC insuring mechanical and electrical 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 accordance with MIL-STD-883, method 2007.2, condition A.

Figure 2 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 2. SNAPHAT® insertion/extraction forces

15

12.5

Average Insertion

Average Extraction

10

7.5

5

2.5

0

1

2

3

4

5

6

7

8

9

10

Number of Extractions

AI02526

6/16

Share Link: