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© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 • 864-963-6300 • www.kemet.com

A4062_ESZ • 1/27/2017

Single-Ended Aluminum Electrolytic Capacitors – ESZ Series, +105°C

Shelf Life

The capacitance, ESR and impedance of a capacitor will not change significantly after extended storage periods, however the

leakage current will very slowly increase.

KEMET's E-series aluminum electrolytic capacitors should not be stored in high temperatures or where there is a high level of

humidity.

The suitable storage condition for KEMET's E-series aluminum electrolytic capacitors is +5 to +35°C and less than 75% in

relative humidity.

KEMET's E-series aluminum electrolytic capacitors should not be stored in damp conditions such as water, saltwater spray or

oil spray.

KEMET's E-series aluminum electrolytic capacitors should not be stored in an environment full of hazardous gas (hydrogen

sulphide , sulphurous acid gas, nitrous acid, chlorine gas, ammonium, etc.)

KEMET's E-series aluminum electrolytic capacitors should not be stored under exposure to ozone, ultraviolet rays or

radiation.

If a capacitor has been stored for more than 18 months under these conditions and it shows increased leakage current,

then a treatment by voltage application is recommended.

Re-age (Reforming) Procedure

Apply the rated voltage to the capacitor at room temperature for a period of one hour, or until the leakage current has fallen

to a steady value below the specified limit. During re-aging a maximum charging current of twice the specified leakage

current or 5 mA (whichever is greater) is suggested.