Ceramic Dialectric Coupling

Within the ceramic capacitor family there are many forms of ceramic dielectric that are used.

Ceramic dialectric coupling.

The dielectric material determines the capacitance value energy efficiency and size of a capacitor. The characteristics of a capacitor vary mainly depending on the dielectric material used. Dielectric constant low dielectric losses and improved electromechanical coupling coefficients. They are suitable for bypass coupling and decoupling applications or for frequency discriminating circuits where low losses and high stability of capacitance are less important.

C0g also commonly known as np0 is an ultra stable dielectric material. This ceramic dielectric material has low relative permittivity. The capacitance value also depends on the applied voltage. The ceramic dielectric is characterized by a nonlinear change of capacitance over the temperature range.

Non polar capacitors include ceramic film and paper capacitors. Common types include c0g np0 x7r y5v z5u although there are many more. Some of the most common class i dielectrics include c0g and u2j. High performance applications include medical imaging inkjet printing and actuators.

Fixed value capacitors can be broadly categorized into two. A class of ceramic dielectrics is further divided into sub classes depending on the temperature characteristics of the materials. 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.