Ceramic Dialectric Coupling

Fixed value capacitors can be broadly categorized into two.

Ceramic dialectric coupling. The dielectric material determines the capacitance value energy efficiency and size of a capacitor. The ceramic capacitor gains its name from the fact that it uses ceramic materials for its dielectric. Non polar capacitors include ceramic film and paper capacitors. The characteristics of a capacitor vary mainly depending on the dielectric material used.

Dielectric loss factor loss tangent the dielectric loss factor also known as dissipation factor is defined as the tangent of the loss angle tan d the loss factor represents the ratio of resistance to reactance of a parallel equivalent circuit of the ceramic element figure 3. A class of ceramic dielectrics is further divided into sub classes depending on the temperature characteristics of the materials. The capacitance value also depends on the applied voltage. Within the ceramic capacitor family there are many forms of ceramic dielectric that are used.

High performance applications include medical imaging inkjet printing and actuators. Higher dielectric permittivity and coupling results in higher sensitivity in material type. The ceramic dielectric is characterized by a nonlinear change of capacitance over the temperature range. C0g also commonly known as np0 is an ultra stable dielectric material.

Common types include c0g np0 x7r y5v z5u although there are many more. Polar and non polar capacitors. Some of the most common class i dielectrics include c0g and u2j.