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Ceramic capacitor

Ceramic capacitors come in various shapes and styles. Some of the most common are:

  • Multilayer ceramic chip capacitor (MLCC), rectangular block, for surface mounting
  • Ceramic disc capacitor, single layer disc, resin coated, with through-hole leads
  • Feedthrough ceramic capacitor, used for bypass purposes in high-frequency circuits. Tube shape, inner metallization contacted with a lead, outer metallization for soldering
  • Ceramic power capacitors, larger ceramic bodies in different shapes for high voltage applications

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Product Description

A ceramic capacitor is a fixed-value capacitor in which ceramic material acts as the dielectric. It is constructed of two or more alternating layers of ceramic and a metal layer acting as the electrodes. The composition of the ceramic material defines the electrical behavior and therefore applications. Ceramic capacitors are divided into two application classes:

  • Class 1 ceramic capacitors offer high stability and low losses for resonant circuit applications.
  • Class 2 ceramic capacitors offer high volumetric efficiency for buffer, by-pass, and coupling applications.

Ceramic capacitors, especially the multilayer style (MLCC), are the most produced and used capacitors in electronic equipment that incorporate approximately one trillion (1012) pieces per year.[1]

Ceramic capacitors of special shapes and styles are used as capacitors for RFI/EMI suppression, as feed-through capacitors and in larger dimensions as power capacitors for transmitters.

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