TS 7747

TS 7747 is an electrotechnical vocabulary standard for the terms and definitions used with electromechanical components in electronic equipment. Rather than acting as a product test or acceptance standard, it establishes common terminology for general components, their parts, the characteristics of those parts, technical characteristics, and related connector or interfacing elements.

What this terminology covers

Electromechanical components combine electrical function with mechanical movement or contact action, which is why precise naming matters in devices such as relays, switches, connectors and similar assemblies. The scope of this standard addresses the vocabulary for general components, component parts, properties of those parts, technical characteristics, replacement or interchangeability concepts, and surrounding or connecting elements. In practice, this kind of terminology standard helps engineers, writers and maintainers describe the same item in the same way across documents, drawings and catalogues.

Why the distinction matters in electronic equipment

Vocabulary standards reduce ambiguity between a complete component and one of its subparts, between functional characteristics and mechanical characteristics, and between the component itself and the elements used to connect or surround it. TS 7747 is aligned with IEC 50/581:1978, placing it within the international electrotechnical terminology framework. Its value is in consistent understanding and communication; it should not be read as specifying a manufacturing method or a test regime for the components themselves.

• Common terminology for general components and their parts
• Names for part properties and technical characteristics
• Concepts related to replacement and interchangeability
• Vocabulary for surrounding and connector components
• Consistent classification of electromechanical components in electronic equipment