Electrical capacitors: Inside a Capacitor

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Inside a Capacitor
Tantalum Capacitors

Tantalum capacitors are polarised and have low voltage ratings like electrolytic capacitors. They are expensive but very small so they are...
Polyester Film capacitors

This capacitor uses a thin polyester film as a dielectric. Not as high a tolerance as polypropylene, but cheap and handy, temperature stab...
Metalized Polyester Film capacitors

No polarity, dielectric made of Polyester or DuPont trade name "Mylar". Good quality, low drift, temperature stable. Because the...
Capacitors

A capacitor is an electronic device for storing charge. Capacitors can be found in almost all but the most simple electronic circuits. Th...
Polystyrene capacitors

No polarity, is used as a dielectric. Constructed like a coil inside so not suitable for high frequency applications. Well used in filter...
MICA Capacitors

This type is an extremely accurate device with very low leakage currents. It is constructed with alternate layers of metal foil and mica...
Symbols for capacitors
Variable capacitors

Variable capacitors are devices that can be made to change capacitance values with the twist of a knob. These devices come in either a...
Super capacitors

Supercapacitors are capacitors which have the ability to store large amounts of charge, and therefore energy, in a very small volume. Energ...

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