Class 1 ceramic capacitors are used where high stability and low losses are required. There are two classes of ceramic capacitors available today: class 1 and class 2. The two most common types are multi-layer ceramic capacitors and ceramic disc capacitors. Ceramic capacitor definition A ceramic capacitor is a capacitor which uses a ceramic material as the dielectric. Ceramic capacitors have a great frequency response due to low parasitic effects such as resistance or inductance. They are not polarized, which means that they may be safely connected to an AC source. Ceramic capacitors are also very small in size and have a low maximum rated voltage. Ceramic capacitors are usually made with very small capacitance values, typically between 1nF and 1♟, although values up to 100♟ are possible. They are made in SMD (surface-mounted) technology and are widely used due to their small size. MLCCs are the most produced capacitors with a quantity of approximately 1000 billion devices per year. The types of ceramic capacitors most often used in modern electronics are the multi-layer ceramic capacitor, otherwise named ceramic multi-layer chip capacitor (MLCC) and the ceramic disc capacitor.
Many geometries were used in ceramic capacitors, of which some, like ceramic tubular capacitors and barrier layer capacitors are obsolete today due to their size, parasitic effects or electrical characteristics. Ceramics were one of the first materials to be used in the producion of capacitors, as it was a known insulator. A ceramic capacitor uses a ceramic material as the dielectric.