TS 975

TS 975 is a standard for the graphical symbols used to represent semiconductor devices and capacitors. In electronic circuit documentation, symbols show the function of a component rather than its physical appearance, so consistent symbol use is important for readable schematics and a shared technical language.

The role of graphical symbols in electronic drawings

Semiconductor devices include components such as diodes, transistors, and related devices whose electrical behavior depends on semiconductor material properties. Capacitors are passive components that store electric charge and are used in functions such as timing, filtering, coupling, and energy buffering. By bringing the symbols for these two component groups together, the standard supports consistency in schematic representation.

Why the scope matters in practice

• The standard covers graphical symbols for semiconductor devices and capacitors.
• It helps make electronic schematics easier to read and compare.
• Separating function from physical appearance supports maintenance, training, and technical documentation.

This record represents an older TSE edition published as equivalent to IEC 117-7:1971 and it is now withdrawn. Even so, it remains useful for understanding the historical development of electronic symbol conventions and the standardisation of technical documentation.