13 Facts About Ceramic capacitor

Ceramic capacitor is a fixed-value capacitor where the ceramic material acts as the dielectric.

Early style of the ceramic disc capacitor could be more cheaply produced than the common ceramic tube capacitors in the 1950s and 1970s.

Electrodes of the capacitor are deposited on the ceramic layer by metallization.

Capacitance formula of a MLCC Ceramic capacitor is based on the formula for a plate Ceramic capacitor enhanced with the number of layers: where e stands for dielectric permittivity; A for electrode surface area; n for the number of layers; and d for the distance between the electrodes.

The inductive parts of a Ceramic capacitor are summarized in the equivalent series inductance, or ESL.

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Standard multi-layer ceramic capacitor has many opposing electrode layers stacked inside connected with two outer terminations.

The X2Y ceramic chip capacitor however is a 4 terminal chip device.

However, this particular type of ceramic capacitor is patented, so these components are still comparatively expensive.

The units used to specify Ceramic capacitor values includes everything from picofarad, nanofarad, microfarad and farad .

The different dielectrics of the many Ceramic capacitor types show great differences in temperature dependence.

Frequency dependent AC resistance of a Ceramic capacitor is called impedance and is a complex ratio of voltage to current in an AC circuit.

At frequencies above the resonance, the impedance increases again due to ESL: the Ceramic capacitor becomes an inductor with inductance equal to Ceramic capacitor's ESL, and resistance equal to ESR at the given frequency.

Dielectric absorption is the name given to the effect by which a Ceramic capacitor, which has been charged for a long time, discharges only incompletely.