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ELECTROLYTIC ALUMINUM CAPACITORS

Revision 09/17

www.exxelia.com

Tel : + 33 (0)2 40 01 26 51

General technical data

8. INFORMATION ON APPLICATION

8.1. CLEANING SOLVENTS

Use aliphatic alcohols, such as denatured ethyl alcohol, isopropanol, or butylacetate,

or else alkaline d Iluted solutions. Avoid incompatible solvents (halogenous for

example).

8.2. SHELF LIFE

There is no electrical characteristics variation for long periods of storage except

leakage current which can increase.

It is caused by chemical reactions between the dielectric alumina and the electrolyte.

These reactions are reversible when switched on. Capacitors can generally be stored

at temperature between –5° and +50°C without reforming for the following periods

of time :

• For UR ≤ 100 V, storage time : .........................................5 years

(up to 10 years under specific conditions)

• For 100 V < UR ≤ 360 V storage time : ............................3 years

• For 360 V < UR < 500 V storage time : ..............................1 year

• For UR ≤ 500 V, storage time : ..................................... 6 months

Generally when these periods are overstepped, one hour at rated voltage causes the

decrease of leakage current under the specified limits. An other way to avoid this

leakage current increase problem is to always limit ava Ilable power through capacitor

during first seconds or minutes after storage or transport, according to the following

chart :

8.3. LOW PRESSURE RESISTANCE

EXXELIASICSAFCO capacitors can be used with ambient low pressure decreasing up to

10 mbar (altitude 28000 m – 92000 feet).

8.4. MOUNTING SCREW TERMINALS CAPACITORS (FELSIC)

Capacitors may be used vertically (terminals on top) or horizontally. When used

horizontally, the following position in relation to the safety vent, is recommended :

Mounting capacitors in series may be used for operating voltage exceeding UR. See

FELSIC in bank

.

8.5. MOUNTING SOLDER TYPE CAPACITORS.

They may be used in any position. During mounting, avoid applying excessive force to

capacitor pins or wires. There is a risk of damaging internal connections.

After soldering and for the same reasons, do not try to move the capacitor's body.

8.6. ELECTROLYTES : SAFETY RULES.

Electrolytes used in EXXELIASICSAFCO capacitors are manufactured by EXXELIASICSAFCO.

Main solvents are generally butyrolactone and ethylene glycol, very stable high bo

Iling point solvents. Ionic conductive salts in electrolyte induce a very weak acidity

(pH 5 to 7).

8.7. ENVIRONMENT.

• There is no possib Ility to produce gaseous emissions of nitrogen oxides or liquid

emissions of nitrites or nitrates during the manufacture process.

• There is no possib Ility to produce liquid emissions or salts coming from dangerous

metals such as mercury, hexavalent chromium or cadmium and from poisons such

as arsenic or cyanides.

Accessories not made in aluminum, ring, screw, are also plated in anticorrosion

processes without cadmium.

EXXELIASICSAFCO is always involved in this security field particularly in using whenever

it’s possible chemicals for electrolyte, without well-known risks.

• Dimethylformamide (DMF) dangerous solvent forbidden in several uses is

completely excluded by EXXELIASICSAFCO, since 1990.

• There is no halogen compound such as chlorofluorocarbon (CFC or FCKW in

german) or polychlorobiphenyl (PCB-Pyralene) or pentabromodiphenylether or

octabromodiphenylether.

There is neither benzene, toluene or phenyl compound nor explosive such as picric

acid, nor asbestos in plastic covers.

All the capacitors made by EXXELIASICSAFCO since 1991, can be scrapped or used in raw

materials recycling processes with-out special care.

EXXELIASICSAFCO aluminum capacitors with non solid electrolyte are particularly

suitable for different kinds of environment taking in account severity increasing laws.

European directives 2003/11/EC, 2002/96/EC (WEEE) and 2002/95/EC (RoHS)

applies to all EXXELIASICSAFCO capacitors including every solder type, manufactured

with pure tin coated pins or wires, since at least January 2006.

EXXELIASICSAFCO capacitors do not contain any carcinogen, mutagen and substance

toxic for reproduction in accordance with 1907/2006/EC (REACH) European directive

target.