JECXDE-0016 Datasheet, PDF (12/16 Pages) Murata Manufacturing Co., Ltd. – Electrical Double Layer Capacitor

Specification of Electrical Double Layer Capacitor
11.2 STORAGE CONDITIONS
11.2.1 Storage condition without opening outer package.
30degC 60%RH for 1 year (before opening outer package)
*Remark: This product cannot be baked.
11.2.2 Storage conditions after opening outer package.
(1)Term of warranty of this device is 3 months after opening sealed package.
(2)Storage environment
Please keep device under the following conditions in sealed package.
Temperature: 5-35 deg C and
Humidity: no more than 70%RH. No condensation.
Avoid any acidic or alkaline environment.
Avoid excessive external force on this device while in storage.
(3)Please keep device in sealed plastic package before use
(4)Please do not apply any heat treatment before use.
11.3. CAUTION BEFORE USAGE
(1) Rated voltage
This device must be used within rated voltage. In case over voltage, electrolyte leakage or
swelling may occur.
This device has two individual cells connected electrically in series. Please make sure that
peak voltage is less than 2.7V per cell and less than 2.1V per cell for constant load.
(2)Balance control
When connecting 2 or more capacitors in series (This device itself consists of two individual
capacitors connected electrically in series.), please make sure to control voltage balance of
each capacitor for the following two purposes;
- To prevent overvoltage: Prevent excessive voltage from being applied to any capacitor
- To prevent shortening of the life time: By making capacitor voltage equal, variation in the
rate of degradation can be controlled. It allows long-term use of capacitors.
<Recommended balance condition>
Discharge Frequency of capacitor (Under the condition of power-off
(fully discharge) or discharge under 0.5V)
under 10 times 10-100times 100-500 times 500times or more
Discharge at
under 0.3V
(Battery assist)
2.5V/cell or more active balance active balance active balance active balance active balance
2.3-2.5V/cell
220kΩ or less 100kΩ or less 10kΩ or less 4.7kΩ or less
220kΩ or less
2.1-2.3V/cell
220kΩ or less 220kΩ or less 10kΩ or less 10kΩ or less
220kΩ or less
1.8-2.1V/cell
220kΩ or less 220kΩ or less 22kΩ or less 22kΩ or less
220kΩ or less
under1.8V/cell Please consult a Murata representative
Supposed condition: Temperature is always under 50degC. Within five years
(Supposed degradation rate;
Capacitance decrease: up to 30%, ESR increase: up to 50%)
If using capacitor always at over 50degC, please consult a Murata representative.
Murata Manufacturing Co., Ltd.
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