IEC 61169-64:2025

Overview

IEC 61169-64:2025 is the 2025 sectional specification for RF coaxial connectors (type 0,8) with a 0,8 mm inner diameter of the outer conductor and characteristic impedance 50 Ω. Intended for screw-coupled coaxial connectors, this standard provides the information needed to prepare detail specifications (DS) for components used in telecommunications and test & measurement applications up to 145 GHz. The 2025 edition is a technical revision of the 2019 edition and aligns type 0,8 connector dimensions and performance with recent precision connector practices.

Key topics and technical requirements

• Mating face dimensions: Defines true-to-scale mating face geometry for high performance connectors (grade 1) and standard test connectors (grade 0), including datum systems for tolerances and an additional dimension introduced in this edition.
• Gauging information: Specifies gauge pin dimensions and corrected gauging test procedures for socket centre contacts.
• Performance characteristics: Recommends electrical and mechanical ratings and characteristics to include in detail specifications (see Table 6 in the standard). Emphasis on materials being strong enough to avoid plastic deformation at maximum coupling torque.
• Tests and inspection: Selects applicable tests from IEC 61169-1 and provides test schedules and inspection requirements for assessment levels M and H, covering acceptance and periodic testing.
• Quality and documentation: Simplified clauses for quality assessment, DS preparation, and marking via direct reference to IEC 61169-1, plus a blank DS pro‑forma to aid specification writers.
• Notable technical changes (2025):
  • Upgraded inferior class to grade 1 (high performance),
  • Alignment with IEEE 287.1‑2021 and IEEE 287.3‑2021 precision 0,8 mm connectors,
  • Improved figures, datum system changes, gauge pin corrections, and an optional coupling nut design.

Practical applications and users

• Typical uses: high-frequency telecommunications, laboratory and on‑wafer test setups, and precision test and measurement instruments operating up to 145 GHz.
• Primary users:
  • Connector designers and manufacturers preparing detail specifications (DS) for type 0,8 components
  • Test lab engineers and procurement teams specifying test connectors and gauges
  • Quality and compliance teams implementing inspection and conformance procedures per IEC assessment levels
  • Standards engineers ensuring mechanical/electrical compatibility with IEEE precision connector families

Related standards

• IEC 61169-1 – Generic specification (test methods, quality clauses referenced directly)
• IEEE 287.1-2021 and IEEE 287.3-2021 – Precision 0,8 mm connector dimensions and ratings (alignment targets for this edition)

This specification is essential when specifying, manufacturing, testing, or procuring RF coaxial connectors 0,8 mm / 50 Ω for high-frequency and precision RF applications.