Side-by-side reference

Understand the difference.

Compare the meaning, drawing context and source references of two entries. A similar graphic or shared abbreviation does not establish equivalence.

First referenceCompare with

C ADJ

IEEE / ANSI

ANSI/IEEE adjustable capacitor symbol

The preset-adjustment capacitor form identifies an adjustable capacitive parameter. Its permitted range and commissioning or operational adjustment method come from the component data rather than from an assumed interpretation of the adjustment mark.

Drawing use: SLD / Schematic
Application: Electronic components
Reference family: IEEE / ANSI / Manufacturer
Form evidence: Autodesk IEEE-oriented Capacitive Components functional form. Autodesk explicitly publishes this block under IEEE Symbol Preview. The counterpart is the matching functional concept; no equivalence of every detailed standard graphic is asserted.

A distinction that matters

Capacitive adjustment changes a circuit parameter; it is not a switched connection between two independent circuits.

Full reference

C ADJ

Symbols

Adjustable capacitor

An adjustable capacitor provides a documented variable capacitance. Its control or preset adjustment is specified separately from the two main circuit terminals.

Drawing use: SLD / Schematic
Application: Control circuits
Reference family: IEC / Manufacturer

A distinction that matters

Adjustable capacitance changes a capacitive parameter; it is not an adjustable resistor.

Full reference

Original educational previews. Follow the source references on each full entry for the appropriate standard or selected product.