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Radio-frequency connectors - Part 74- Sectional specification for HN series RF coaxial connectors with screw coupling - Characteristic impedance 50 Ω. IEC 61169-74:2025-11(en). Original standard IEC 61169-74-2025 in PDF full version. Additional info + preview on request

Document status: Active

Quartz crystal units - A specification in the IEC Quality Assessment System for Electronic Components (IECQ) - Part 1- Generic specification. Original standard IEC 61178-1-1993 in PDF full version. Additional info + preview on request

Document status: Replaced by St IEC 60122-1-2017

Transformers and inductors for use in telecommunication and electronic equipment - Designations for cores and assemblies - Part 1- Laminated cores. Original standard IEC 61186-1-1992 in PDF full version. Additional info + preview on request

Document status: Withdrawn

Test methods for electrical materials, printed boards and other interconnection structures and assemblies - Part 3-302- Detection of plating defects in unpopulated circuit boards by computed tomography (CT). IEC 61189-3-302:2025-10(en). Original standard IEC 61189-3-302-2025 in PDF full version. Additional info + preview on request

Document status: Active

Coaxial communication cables - Part 1-114- Electrical test methods - Test for inductance. IEC 61196-1-114:2025-11(en). Original standard IEC 61196-1-114-2025 in PDF full version. Additional info + preview on request

Document status: Active

Electrical apparatus for use in the presence of combustible dust - Part 3- Classification of areas where combustible dust are or may be present. CEI/IEC 61241-3:1997. Original standard IEC 61241-3-1997 in PDF full version. Additional info + preview on request

Document status: Replaced by St IEC 61241-10-2004