IEC 61169-11:2017

Overview

IEC 61169-11:2017 is the sectional specification for RF coaxial connectors (type 4,1-9,5) with an inner diameter of outer conductor 9.5 mm and threaded coupling designed for 50 Ω microwave systems. The standard prescribes mating-face dimensions, gauging information, and test/inspection requirements for connectors used with RF cables and microstrips up to 14 GHz. It is intended to guide the preparation of Detail Specifications (DS) and to ensure mechanical and electrical interoperability across manufacturers and systems.

Key topics and technical requirements

• Mating-face and gauge information
  • Prescribed dimensions for general-purpose connectors (Grade 2) and standard test connectors (Grade 0).
  • Includes mating configurations for both pin and socket centre contacts, with metric thread reference M20×1.
  • Gauge pin definitions and test procedures for sizing and retention checks.
• Quality assessment and test schedules
  • Selected tests and measurement methods referenced from IEC 61169-1.
  • Defines acceptance and periodic test schedules and inspection requirements for assessment levels M and H.
  • Guidance for qualification approval, maintenance, and quality conformance inspection.
• Performance and ratings
  • Recommended performance characteristics to be used when drafting detail specifications (electrical/mechanical ratings referenced to IEC 61169-1).
• Documentation and preparation of detail specifications
  • Instructions and a blank pro-forma to help manufacturers and procurers create consistent DS documents.

Practical applications and who uses this standard

IEC 61169-11 is essential for:

• Connector manufacturers - to design and produce 4,1-9,5 threaded RF coaxial connectors that meet standardized mating and gauge requirements.
• Test and calibration laboratories - for conducting sizing, retention and electrical tests as part of acceptance and periodic assessments.
• Procurement and quality engineers - to write or evaluate Detail Specifications and supplier conformity for 50 Ω connector components.
• RF system and microwave designers - to ensure mechanical compatibility and reliable performance up to 14 GHz when selecting connectors for cable networks, microstrip interfaces and microwave transmission systems.

Practical benefits include improved interchangeability, reduced integration risk in RF assemblies, and clearer supplier acceptance criteria.

Related standards

• IEC 61169-1:2013 - Generic specification: general requirements and measuring methods (normative reference).
• IEC 62037-3 - Measurement of passive intermodulation in coaxial connectors (normative reference).
• Other parts of the IEC 61169 series for additional RF connector families and requirements.

Keywords: IEC 61169-11, RF coaxial connectors, 4,1-9,5, 50 Ω, threaded coupling, mating face dimensions, gauging, test schedules, microwave connectors, 14 GHz.