Capacitor symbol
Also called Non-polarised capacitor
A capacitor stores energy in an electric field between two plates. It blocks DC and passes AC.
ANSI / IEEE
IEC 60617 · S00567
What the capacitor symbol means
A capacitor stores energy in an electric field between two plates. It blocks DC and passes AC.
ANSI and IEC symbols
Where you see it
Filtering, decoupling, timing, power factor correction and motor starting.
What is written next to it
On a schematic, the capacitor usually carries its designator, capacitance and voltage rating, such as C1 100 nF 50 V.
Related symbols
Frequently asked questions
What does the capacitor symbol look like?
On ANSI drawings: Two parallel plates. In IEC 60617: Two parallel plates, drawn the same way.
Is the capacitor symbol the same in IEC and ANSI?
Yes, it is drawn the same way in most legends.
Where is a capacitor used?
Filtering, decoupling, timing, power factor correction and motor starting.
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