Ceramic Dialectric Coupling

Dielectric constant low dielectric losses and improved electromechanical coupling coefficients.

Ceramic dialectric coupling.

The characteristics of a capacitor vary mainly depending on the dielectric material used. Fixed value capacitors can be broadly categorized into two. C0g also commonly known as np0 is an ultra stable dielectric material. This ceramic dielectric material has low relative permittivity.

The ceramic dielectric is characterized by a nonlinear change of capacitance over the temperature range. 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. Higher dielectric permittivity and coupling results in higher sensitivity in material type. The capacitance value also depends on the applied voltage.

Non polar capacitors include ceramic film and paper capacitors. A class of ceramic dielectrics is further divided into sub classes depending on the temperature characteristics of the materials. 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. Polar and non polar capacitors. The dielectric material determines the capacitance value energy efficiency and size of a capacitor.