Variable capacitor symbol
Also called Trimmer capacitor, Tuning capacitor
A capacitor whose capacitance can be adjusted. The diagonal arrow through the plates means variable.
ANSI / IEEE
IEC 60617What the variable capacitor symbol means
A capacitor whose capacitance can be adjusted. The diagonal arrow through the plates means variable.
ANSI and IEC symbols
Where you see it
Tuning radio circuits, trimming oscillators and adjustable filters.
What is written next to it
On a schematic, the variable capacitor usually carries its designator and range, such as C5 10 to 100 pF.
Related symbols
Frequently asked questions
What does the variable capacitor symbol look like?
On ANSI drawings: Two parallel plates with a diagonal arrow through them. In IEC 60617: The same plates and arrow.
Is the variable capacitor symbol the same in IEC and ANSI?
Yes, it is drawn the same way in most legends.
Where is a variable capacitor used?
Tuning radio circuits, trimming oscillators and adjustable filters.
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