what is ceramic capacitor used for

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Dielectric

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  • What is a ceramic capacitor?

  • A ceramic capacitor is a capacitor which uses a ceramic material as the dielectric. The two most common types are multi-layer ceramic capacitors and ceramic disc capacitors. There are two classes of ceramic capacitors available today: class 1 and class 2.

  • What are the types of capacitors used in electronic devices?

  • Ceramic Disc Capacitors 鈥?These are often used as safety capacitors in electromagnetic interference suppression applications. Multi-layered Ceramic Capacitors 鈥?Ceramic capacitors with multilayer style (MLCC) are widely used and produced capacitors applied in the electronic equipment.

  • Why do we use ceramic capacitors instead of mica?

  • In circuits where a small size of capacitor is required Ceramic capacitors comes into picture. These where intially developed in German as replacement for mica. Before 1920鈥檚 due to insulating properties of mica it was used as a dielectric material in a capacitor.

  • What is the dissipation factor of Class 3 ceramic capacitors?

  • Class 3 ceramic capacitors offer high volumetric efficiency with poor accuracy and a low dissipation factor. It cannot withstand high voltages. The dielectric used is often Barium Titanate. Class 3 capacitor will change its capacitance by -22% to +50%. Temperature range of +10C to +55C. Dissipation factor: 3 to 5%.

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