In electrolytic polar capacitors,

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Range of ambient temperature change, oC From -85 to +85 From -40 to +85 From -25 to +85
In ceramic capacitors, the dielectric is high-quality ceramics: ultraporcelain, tikond, ultrasteatite, etc. The lining is a layer of silver applied to the surface. Ceramic capacitors are used in the separating circuits of high-frequency amplifiers.


the dielectric is a layer of oxide applied to a metal foil. The guatemala mobile database lining is formed from a paper tape impregnated with electrolyte.

In solid oxide capacitors, the liquid dielectric is replaced by a special conductive polymer. This allows for a longer service life (and reliability). The disadvantages of solid oxide capacitors are their higher price and voltage limitations (up to 35 V).


Oxide electrolytic and solid capacitors are characterized by high capacity, with relatively small dimensions. This feature is determined by the fact that the thickness of the oxide - dielectric is very small.

When connecting oxide capacitors to a circuit, it is necessary to observe the polarity. In case of polarity violation, electrolytic capacitors explode, solid-state capacitors simply fail. In order to completely avoid the possibility of explosion (for electrolytic capacitors), some models are equipped with safety valves (not present for solid-state capacitors). The scope of application of oxide (electrolytic and solid-state) capacitors is the separation circuits of audio frequency amplifiers, smoothing filters of DC power supplies.

Metallized film capacitors are used in high-voltage power supplies.

Operating principle
Now that we know how this element is designated in the diagrams, we need to consider the principle of operation of the capacitor. When the capacitor plates are connected to the power source, the electric charges from the positive and negative terminals of the power supply rush to the plates, accumulating on them.