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Ceramic capacitors

Ceramic capacitors

The insulating layer, the dielectric, between the two electrodes of ceramic capacitors consists, as the name suggests, of ceramic. Above all it’s the constituents whose special composition determines the electrical characteristics of the capacitor. They are also what determine the field of application and define what functions can be entrusted to those capacitors in electrical circuits. Today for instance great importance is attached to use of support or decoupling capacitors in digital circuits. This class of capacitors can be divided roughly into two categories: class 1- and class 2 capacitors. Class 1 means they are very stable and possess are insensitive to field strengths, with relatively low permittivity (transparency to electrical fields). These capacitors are used in electrical circuits with high requirements regarding exactness of frequency, with low dielectric losses. Class 2 stands for high volumetric efficiency. They have a high field strength permittivity and are used generally where high capacitance values with good sieving and decoupling characteristics are required.

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