IEC 63295:2021 PRV 
Pre release version

Specification for WB series glass beads with 50 Ω impedance for RF connectors


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This Final Draft International Standard is an up to 6 weeks' pre-release of the official publication. It is available for sale during its voting period: 2021-12-17 to 2022-01-28. By purchasing this FDIS now, you will automatically receive, in addition, the final publication.

IEC 63295:2022 provides the requirements for WB series glass beads with 50 Ω impedance for RF connectors, including, among other, the structure dimensions, IEC type designation, rating and characteristics, and quality assessment.
These glass beads are used for the adaption of coaxial systems to microstrip circuits used extensively in microwave communication systems such as TR modules, power modules, integrated circuits where hermetic seal is required. They can serve as a part of an RF coaxial connector, multi-channel RF connector or hybrid connector, or can be applied directly in various communication module systems as an independent product. They provide a 50 Ω normative impedance with an operating frequency limit up to 65 GHz.

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Additional information

Publication typeInternational Standard
Publication date2021-12-17
Available language(s)English
TC/SCTC 46/SC 46F - RF and microwave passive componentsrss
ICS33.120.30 - RF connectors
Stability date  2024
File size1335 KB

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