Ceramic capacitors

Ceramic Dielectric Capacitors

Ceramic capacitors are even more compact than film or tantalum capacitors. Their core consists of wafer-thin oxide ceramic layers of titanium oxide or barium titanate, which serve as dielectric.

The oxide ceramic gives this type of capacitor high dielectric strength, ideal for high voltages. Color dots indicate the type of ceramic and the connection side of the inner coating.

Advantages

Precise Capacity
Multiple Application
Arc Protection
High Voltages
0,1pF to 220μF
4V to 6000 VDC

Construction forms

Disc capacitors
Tube capacitors
Bead capacitors
Feedthrough capacitors

Ceramic capacitors divided according to the size of the dielectric constant:

Class 1: Low dielectric constant (NDK capacitor).
Use in filters, oscillating circuits, oscillator circuits.
Class-2: High dielectric constant (HDK capacitor).
Use as interference suppression capacitors in filter circuits or as a buffer.

Multilayer ceramic capacitors, or MLCCs (Multi Layer Ceramic Capacitors), are one step more compact than conventional ceramic caps. Here, several ceramic films are stacked on top of each other. MLCCs are the most common design.