ECOS1JP682DA datasheet(4/37 Pages) PANASONIC

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1 General Specifications

Capacitance

Nominal capacitance is specified at 120Hz

frequency

and

20°C

temperature.

Unless

specified

otherwise,

standard

capacitance

tolerance is ±20% of the nominal value.

Working Voltage

The maximum allowable sum of continuous DC

voltage plus peak ripple voltage which can be

applied to the capacitor.

Surge Voltage

The maximum transient voltage level allowed

for short periods of time without sustaining

permanent damage to the capacitor. Values are

listed in the standard product ratings.

Leakage Current

(µA) maximum after 5 minutes of

= 3 CV

applying rated voltage. Capacitance is the

nominal value in µF, voltage in VDC.

Ripple Current

The standard product tables list ripple current

allowable limits at specified maximum operating

temperatures.

Correction factors for other temperatures and

frequencies are listed in the general sections for

the general product type.

Endurance (Life) Test

Duration: Specified hours of life

Ambient Temp.: Maximum specified

operating temperature

Applied Voltage: DC voltage with

maximum specified ripple

current applied (the sum

of the

applied DC voltage plus

the peak ripple voltage

should not exceed rated

working voltage)

Post test requirements at +20°C:

Leakage Current:

≤ Initial specified value

Cap. change:

≤ ±20% of initial

measured value

D. F. / E.S.R.:

≤ 200% of initial specified

value

Shelf Life

Duration: 1000 hours

Ambient Temp.: Maximum specified

operating temperature

Applied Voltage: None

Post test requirements at +20°C:

Same as Endurance Test requirements above.

Measurements are to be performed after

applying DC working voltage for 30 minutes.

2 Life Expectancy

Panasonic capacitors have a specified life at a

maximum

temperature

and

ripple

current.

Typical life can be considerably longer based on

actual life test results performed by the factory.

This data can be provided to help the designer

estimate expected life. This information is given

with a 60% confidence level.

Capacitor life at lower temperatures follows

"The Doubling 10°C Rule" where life is doubled

for

each

10°C

reduction

operating

temperature. The following equation is useful for

determining the life of a capacitor in the

application;

= L

× 2

−(T2+∆T)

where:

1 = Specified life (hours) at maximum

operating temperature. Typical life may

be substituted (at a 60% confidence

level).

2 = Expected life (hours) at actual operating

temperature.

T1 = Maximum operating temperature.

T2 = Ambient temperature (°C).

∆T = Ripple current temperature rise (°C).

It is recommended that the ripple current heat

rise be limited to 15°C at lower ambient

temperatures as higher temperature rises may

reduce operating life.

End of life is defined by the occurrence of one

of the following when stabilized at 20°C;

Capacitance change exceeds ±20% of the

initial measured value.

Dissipation Factor exceeds 200% of the initial

specified value.

Aluminum Electrolytic Capacitors

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