M4Z28-BR00SH1 STMicroelectronics, M4Z28-BR00SH1 Datasheet - Page 2

• Manufacturer Part Number: M4Z28-BR00SH1
• Description: IC SNAPHAT BATTERY 48MAH 28-SOIC
• Manufacturer: STMicroelectronics
• Series: Snaphat®r

Specifications of M4Z28-BR00SH1

• Voltage - Rated: 2.8V
• Capacity: 48mAh
• Termination Style: Requires Holder
• Rechargeability: No
• Operating Temperature: -40°C ~ 85°C
• Battery Type: Li-(CF)
• Output Voltage: 3 V
• Operating Supply Voltage: 0 V to 2.8 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Package / Case: SOIC-28
• Mounting Style: SMD/SMT
• Supply Voltage Range: 2.8V
• Battery Ic Case Style: SOIC
• No. Of Pins: 28
• Operating Temperature Range: 0°C To +70°C
• Crystal Terminals: Snap On
• Esr: 60kohm
• Length/height, External: 21.21mm
• Rohs Compliant: Yes
• External Depth: 6.48mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Size / Dimension: -
• Battery Cell Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 497-3689-5

M4ZXX-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 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 three
or four extractions, though, 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.
BATTERY CHARACTERISTICS
Figure 3 illustrates the lithium coin cell discharge
rate for a given load. This demonstrates the char-
Figure 2. SNAPHAT Insertion/Extraction Forces
2/7
12.5
7.5
7.5
2.5
20
10
5
5
0
1
2
3
Average Insertion Force
Average Extraction Force
4
Number of Extractions
5
Table 1. Description
acteristically flat voltage level supplied by the bat-
tery until very near the end of its life.
discharge levels have been greatly accelerated in
comparison to the normal, actual usage.
UL RECOGNITION
The M4Zxx-BR00SH has been recognized by Un-
derwriters Laboratories under their Component
Recognition Program and carries U.L. File Num-
ber E89556.
BATTERY LIFE
For information on Data Retention Life and Battery
Storage Life, please refer to the Application Note
AN1012.
Operating
Temperature
Storage
Temperature
Nominal
Battery Voltage
Nominal
Battery Capacity
Battery Chemistry
6
Parameter
7
8
1 = 0 to 70 °C
6 = –40 to 85 °C
–40 to 85 °C
2.8 V
48 mAh
120 mAh
Li(CF)x
9
Value
10
M4Z28
M4Z32
AI02526
These