SIST EN IEC 61169-54:2021/kFprA1:2026

• Status: Not Published
• Public Enquiry End Date: 09-Oct-2025
• ICS: 33.120.30 - RF connectors
• Technical Committee: MOC - Mobile Communications
• Current Stage: 5020 - Formal vote (FV) (Adopted Project)
• Start Date: 28-Jul-2026
• Due Date: 15-Sep-2026
• Completion Date: 03-Aug-2026
• Ref Project: EN IEC 61169-54:2021/FprA1:2026 - Amendment 1 - Radio-frequency connectors - Part 54: Sectional specification for coaxial connectors with 10 mm inner diameter of outer conductor, nominal characteristic impedance 50 Ω, Series 4,3-10

• Amends: SIST EN IEC 61169-54:2021 - Radio frequency connectors - Part 54: Sectional specification for coaxial connectors with 10 mm inner diameter of outer conductor, nominal characteristic impedance 50 Ohms, Series 4.3-10 (IEC 61169-54:2021)
• Effective Date: 15-Apr-2025

Overview

SIST EN IEC 61169-54:2021/kFprA1:2026 is an amendment to the IEC 61169-54 standard, focused on radio frequency (RF) connectors. Specifically, this document updates the sectional specification for coaxial connectors with a 10 mm inner diameter of the outer conductor and a nominal characteristic impedance of 50 Ω, Series 4,3-10. This amendment is driven by industry feedback and aims to address connector performance in critical applications where mechanical robustness and reliability are paramount.

The standard is developed under the guidance of the Slovenski inštitut za standardizacijo (SIST) and aligns with the requirements of both IEC and CENELEC for international harmonization.

Key Topics

• Updated Coupling Torque: The amendment modifies the coupling torque specification for screw-type coaxial connectors from a 5 N∙m limit to a higher 10 N∙m range, addressing field performance against loosening under vibration.
• Mechanical Performance Parameters: The document details key mechanical characteristics-such as centre contact captivation, engagement and separation forces, insertion forces, and strength of coupling mechanisms-ensuring connectors meet stringent reliability standards.
• User Feedback Integration: Changes are based on user and manufacturer input, particularly regarding connector stability under vibration in field deployments.

Applications

The amended standard is essential for professionals involved with RF and microwave communication systems, especially where robust, high-frequency coaxial connections are critical. Key application areas include:

• Telecommunication Infrastructure: Secure and stable connections for antennas, base stations, and transmission towers, where environmental vibration can threaten connector integrity.
• Broadcast and Media: Reliable RF links in studio setups and field broadcasting requiring consistent impedance and connectivity.
• Test and Measurement Equipment: Ensuring measurement accuracy by maintaining secure physical and electrical connections under repetitive use.
• Military and Aerospace Systems: Environments where vibration and mechanical shock demand connectors with high mechanical stability.

By increasing the coupling torque specification, the standard directly improves the reliability of installations exposed to vibration-critical in outdoor and mobile environments.

Related Standards

This amendment complements a broader family of RF connector standards and harmonizes with international guidelines, supporting system compatibility and procurement flexibility. Related documents include:

• IEC 61169 Series: Covers general and sectional specifications for RF connectors, ensuring global consistency.
• EN IEC 61169-54: European equivalent, offering harmonized requirements for 4,3-10 Series connectors.
• SIST Standards for RF Connectors: National standards providing specifications for various connector configurations used in Slovenia and compatible regions.

Practical Value

The adoption of SIST EN IEC 61169-54:2021/kFprA1:2026 ensures that RF connectors not only meet current operational needs but also anticipate and counteract real-world issues such as vibration-induced loosening. Its alignment with manufacturer feedback and rigorous mechanical testing criteria underscores the commitment to high performance and safety in RF connections.

For organizations deploying RF equipment in challenging environments, updating to this amendment will support increased system reliability, reduced maintenance, and enhanced signal integrity, underlining its significance in contemporary RF connector specification and procurement.

SLOVENSKI STANDARD
SIST EN IEC 61169-54:2021/oprA1:2025
01-oktober-2025
Radiofrekvenčni konektorji - 54. del: Področna specifikacija za koaksialne
konektorje z notranjim premerom zunanjih vodnikov 10 mm in nazivno
karakteristično impendanco 50 ohm, serija 4,3-10 - Dopolnilo A1
Amendment 1 - Radio frequency connectors - Part 54: Sectional specification for coaxial
connectors with 10 mm inner diameter of outer conductor, nominal characteristic
impedance 50 Ω, Series 4,3-10
Connecteurs pour fréquences radioélectriques - Partie 54: Spécification intermédiaire
relative aux connecteurs coaxiaux avec diamètre intérieur du conducteur extérieur de 10
mm, impédance caractéristique nominale de 50 ω, série 4,3-10
Ta slovenski standard je istoveten z: EN IEC 61169-54:2021/prA1:2025
ICS:
33.120.30 Radiofrekvenčni konektorji RF connectors
(RF)
SIST EN IEC 61169-54:2021/oprA1:2025 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

SIST EN IEC 61169-54:2021/oprA1:2025

SIST EN IEC 61169-54:2021/oprA1:2025
46F/711/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 61169-54/AMD1 ED2
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2025-07-18 2025-10-10
SUPERSEDES DOCUMENTS:
46F/705/RR
IEC SC 46F : RF AND MICROWAVE PASSIVE COMPONENTS
SECRETARIAT: SECRETARY:
United States of America Mr John Morelli
OF INTEREST TO THE FOLLOWING COMMITTEES: HORIZONTAL FUNCTION(S):

ASPECTS CONCERNED:
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of CENELEC,
is drawn to the fact that this Committee Draft for Vote (CDV) is
submitted for parallel voting.
The CENELEC members are invited to vote through the CENELEC
online voting system.
This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of which they are aware
and to provide supporting documentation.
Recipients of this document are invited to submit, with their comments, notification of any relevant “In Some Countries” clau ses to be
included should this proposal proceed. Recipients are reminded that the CDV stage is the final stage for submitting ISC c lauses. (SEE
AC/22/2007 OR NEW GUIDANCE DOC).

TITL
...