IEC 60194-2:2025

Overview

IEC 60194-2:2025 - Electronic assembly, design and circuit boards - Vocabulary (Part 2) defines standardized terms and definitions used in circuit board, electronic assembly and related electronic technologies. The edition classifies terminology using a decimal classification code (DCC) (explained in Annex A) and provides an alphabetical term list with codes (Annex B). This 2025 revision updates vocabulary to reflect advances such as printed electronics and packaging technologies while aligning with the IEC Electropedia/IEV.

Key topics

• Structured vocabulary and classification
  • Terms are grouped and assigned DCC numbers for consistent referencing across documentation and standards.
  • Annex A explains the DCC scheme; Annex B lists terms in alphabetical order with codes.
• Scope of terminology
  • Engineering and design for electronic packaging
  • Components and materials for electronic packaging
  • Fabrication and assembly processes for interconnection structures
  • Types and performance of interconnecting structures and assemblies
  • Quality, reliability, fabrication and assembly terms
• Notable technical changes in 2025 edition
  • 116 terms transferred to the International Electrotechnical Vocabulary (IEV)
  • Addition of 9 new terms related to printed electronics and packaging
  • Revision of 23 definitions to reflect current technology
  • Removal of three “printed wiring” terms and reintroduction of identification codes for terms
• Reference and alignment
  • Developed by IEC Technical Committee 91 (Electronics assembly technology) and designed to work with IEC Electropedia and other IEC terminology resources.

Applications

IEC 60194-2:2025 is a practical resource for:

• Design engineers and PCB designers - ensure consistent terminology in specifications, schematic notes and design reviews.
• Manufacturing and assembly engineers - standardize process descriptions, work instructions and process controls.
• Quality, reliability and test engineers - use uniform definitions when creating inspection criteria, reliability reports and failure analyses.
• Standards authors, technical writers and translators - maintain precise, unambiguous language across standards, datasheets and multilingual documentation.
• Purchasing and supply-chain teams - clarify component and process requirements in procurement documents and contracts.
• Academia and training providers - teach current, industry-aligned terminology for electronics packaging and assembly.

Related standards

• IEC 60194 series (other parts under the same general title)
• IEC 60194-1:2021 (referenced for related plane terminology)
• IEC Electropedia / IEV - authoritative online terminology resource

Keywords: IEC 60194-2:2025, electronic assembly vocabulary, circuit boards terminology, DCC classification, printed electronics terminology, IEC standards, electronics packaging vocabulary.