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| Aluminum Electrolytic Capacitors |
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Nichicon's mainstay products
are aluminum electrolytic capacitors that have aluminum oxide
as their dielectric. As compared to other dielectrics, a large
capacitance can be obtained with aluminum oxide, because it
can be made into thinner sheets, and because it has a higher
dielectric constant; in addition, it offers lower cost per
unit of capacity. It also makes product miniaturization relatively
easy, since the surface area can be increased by roughening
the surface of the original aluminum foil. Using high-capacity,
high-quality electrode foils and highly reliable electrolytes,
and calling upon our accumulated production engineering background,
Nichicon has obtained a top-class market share worldwide. |
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| Positive Thermistors, Posi-R |
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A thermistor is a kind of semiconductor
in which the level of electrical resistance changes according
to temperature. Thermistors whose levels of resistance rise
when the temperature rises are called positive thermistors.
They are used as degaussing circuit elements, overcurrent
protection element, and ceramic heating elements in cars and
various kinds of electronic products such as televisions,
refrigerators, and vacuum cleaners. Posi-R has been evaluated
as being of extremely high quality, with a market fraction
defective of less than 0.1 PPM. Among thermistors with the
same performance, their special features are their small size,
and high proof pressure. |
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| Electric Double Layer Capacitors |
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The EVer CAP is a high-capacity
electric double layer capacitor that uses activated charcoal
for its electrodes. It has a capacitance several hundred to
thousand times that of electrolyte capacitors of the same
volume, and is characterized by its quick recharge as well
as large capacity and discharge capabilities. It has the additional
advantages that it can be used semipermanently, and that it
has little environmental impact, since it does not contain
cadmium or lead, as do nickel-cadmium and lead storage batteries.
EVer CAP has been rated as having, in particular, high capacity,
as well as superb temperature characteristics and voltage
retention. |
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| Film Capacitors |
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Film capacitors are those that
employ plastic film of, for example, polyethylene or polypropylene
as dielectrics. Plastic films far excel other dielectric materials
in terms of insulation characteristics, so that they are suited
to high-voltage and high-frequency environments. A large number
of them are used in high-frequency circuits in AV equipment,
information transmission devices, etc. |
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