This article provides overview of common and less common inductor symbols.
An inductor, also called a coil, choke, winding, inductance or reactor, is a passive two-terminal electrical component that stores energy in a magnetic field when electric current flows through it. An inductor typically consists of an insulated wire wound into a coil.
There are many different symbols that are used to represent inductors. The most common one is a coil of wire, but you may also see symbols that represent a solenoid or a spiral.
| Inductor Symbol | Description | Inductor Symbol | Description |
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Air core Inductor, general symbol.Alternative names: Choke, Coil, Winding.
Earlier published in: IEC 60617-2018. |
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Inductor, continuously variable.Remarks: The symbol is shown with magnetic core.
Earlier published in: IEC 60617-2018. |
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Inductor with magnetic core. Earlier published in: IEC 60617-2018. |
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Inductor with moveable contact, variable in steps. Earlier published in: IEC 60617-2018. |
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Inductor with gap in magnetic core. Earlier published in: IEC 60617-2018. |
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Variometer. Earlier published in: IEC 60617-2018. |
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Inductor with fixed tappings.Remarks: The symbol is shown with two tappings (taps).
Earlier published in: IEC 60617-2018. |
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Ferrite core inductor symbol. |
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Iron core inductor symbol. |  |
Variable inductor symbol (general). |
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Shielded inductor symbol. |  |
Preset inductor symbol. |
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Coaxial choke with magnetic core. Earlier published in: IEC 60617-2018. |
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Symbol of Bifilar Inductor. |
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Reactor, general symbol.Alternative names: Choke.
Earlier published in: IEC 60617-2018. |
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Transductor symbol. When windings are separated on a drawing, suitable indication shall be provided to show that they are on the same core.
Earlier published in: IEEE Std 315-1975 (Reaffirmed 1993) |
