CR2477 Panasonic - BSG, CR2477 Datasheet

BATTERY LITHIUM COIN STD 3V 24MM

CR2477

Manufacturer Part Number
CR2477
Description
BATTERY LITHIUM COIN STD 3V 24MM
Manufacturer
Panasonic - BSG
Series
CR2477r
Datasheets

Specifications of CR2477

Battery Cell Size
Coin 24.5mm
Voltage - Rated
3V
Capacity
1000mAh
Size / Dimension
0.96" Dia x 0.30" H (24.5mm x 7.7mm)
Termination Style
Requires Holder
Rechargeability
No
Discharge Current
0.2mA
Operating Temperature
-30°C ~ 60°C
Weight
0.37 oz (10.49g)
Lead Free Status / RoHS Status
Lead free / RoHS compliant by exemption
Other names
CR-2477
CR-2477/BN
CR2477/BE
P120

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Company:
Bonase Electronics (HK) Co., Limited Bonase Electronics (HK) Co., Limited
Part Number:
CR2477N
Manufacturer:
Panasonic
Quantity:
4 000
Price:
(1) Reduction of battery voltage and deterioration of capacity through contact with antistatic
Incidents have been reported where terminal-mounted batteries for memory backup or coin-type lithium batteries have
come into contact with antistatic conductive materials, thus forming external discharge circuits and leading to voltage drops
or capacity deterioration.
In manufacturing plants using ICs, LSI and other semiconductor components, thoroughgoing antistatic measures are taken.
Various protective materials are used to prevent static: most of them have special compounds of carbon, aluminum foil and
other metals and are therefore conductive. These protective materials are used, for example, in the form of packaging bags,
trays, mats, sheets, films, corrugated boards and resin cases.
A protective material may have a resistance ranging from 10
terminals of a battery come into contact with this material, a current ranging from several milliamperes to several microamperes
will flow and the battery will discharge, causing voltage drop and capacity deterioration.
This information is generally descriptive only and is not intended to make or imply any representation, guarantee or warranty with respect to any cells and batteries. Cell and battery designs/specifications
are subject to modification without notice. Contact Panasonic for the latest information.
Battery-mounted PC boards were inadvertently
brought into contact with spacers and a conductive
rubber sheet. The battery
charge was exhausted.
A terminal-mounted battery was inserted into a
conductive mat. The battery charge was exhausted
in several days.
A battery-mounted PC board was inadvertently
brought into contact with a conductive resin case.
The battery charge was exhausted.
conductive materials
Reduction of Battery Voltage and Deterioration of Capacity
Rubber sheet
Conductive resin case
-
Conductive mat
Preventing Quality Problems
Spacer
+
LITHIUM HANDBOOK
3
to 10
When batteries are to be used near protective materials,
take every possible care to ensure that the (+) and (-)
terminals of the batteries or PC boards, etc. on which
batteries are mounted do not touch these protective
materials directly.
A battery was placed directly
on a rubber sheet spread over
a worktable. The (+) and (-)
terminals were in contact with
t h e s h e e t a n d t h e b a t t e r y
charge was exhausted.
6
/cm, for instance. This means that if the (+) and (-)
Conductive rubber sheet
Conductive
rubber sheet
Exclusive grounding line
AUGUST 2005

Related parts for CR2477

CR2477 Summary of contents

Page 1

... Reduction of battery voltage and deterioration of capacity through contact with antistatic conductive materials Incidents have been reported where terminal-mounted batteries for memory backup or coin-type lithium batteries have come into contact with antistatic conductive materials, thus forming external discharge circuits and leading to voltage drops or capacity deterioration ...

Page 2

... Preventing Quality Problems (2) Reduction of battery voltage and deterioration of capacity through contact between batteries Incidents have been reported where terminal-mounted batteries for memory backup or coin-type lithium batteries have come into contact each other, thus forming discharge circuits (shorted state) and leading to voltage drops or capacity deterioration ...

Page 3

... Preventing Quality Problems Memory Erasure Problems Coin-type lithium batteries are often used as the power supplies for memory backup in various equipment. However problems with the erasure of valuable data in the memory due to improper contact between the batteries and equipment can occur. 1. When batteries are to be used continuously for a ...

Related keywords