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How do ceramic capacitors work on the circuit?

Main tasks of ceramic capacitors on the circuit are coupling, decoupling, smoothing and filtering.

(1) Coupling

In this process, ceramic capacitors remove DC components and pass only AC components.



(2) Decoupling

In this process, ceramic capacitors remove unnecessary noise components.



(3) Smoothing

In this process, ceramic capacitors smooth voltage after rectifying and make voltage nearer to DC.



(4) Filtering

In this process, ceramic capacitors corporated with coils and resistors remove signals in unnecessary frequency bands and pass only signals in necessary frequency bands.