4-1/2" IEC Female Connector for 5-1/2" Coaxial Cable, Gas barrier, Sealing compound

Rev : D | Rev date : 27 May 2024

Radio Frequency Systems line of high performance coaxial cable connectors are designed specifically to provide the highest quality connector-cable interface while simplifying and speeding up the attachment of connectors to HELIFLEX® coaxial cables. RFS connectors are fully tested for mechanical and electrical compliance specifications. They are available in all popular cable sizes in a variety of mating interfaces. To join two cables with IEC connectors, two identical socket connectors are installed on either end of the cables to be joined, and a coupling element is used to make the connection of the center conductor. The coupling element must be ordered separately with the exception of the S-Line male versions that have a captivated coupling element. Connectors are available in sizes matching the nominal cable size. IEC connectors provide optimal power handling for the complete transmission line system.


  • Excellent gas tightness, Overpressure for increased voltage handling is maintained throughout the system
  • Robust Mechanical Design, Superior and consistent performance guarantees outstanding system characteristics.
  • Extremely low reflection factor, Outstanding low reflection factor improves overall system performance and margin and reduces mismatch losses
  • Totally Waterproof according to IP 68, Assures safe, long term operation in the harshest of environments. System tightness doesn't have to rely on overpressure from dehydration equipment.
  • RoHS (EU) and CRoHS (China) compliant i.e. can be used on a global basis

Connector 4-1/2" EIA

External Document Links


¹) The sealing compound must be ordered separately.

Technical features

General Specifications

Transmission Line TypeCoaxial Cable
Cable Size5-1/2"
Cable TypeAir Dielectric
Model SeriesHCA495-50 Series
Connector Interface4-1/2" EIA (50 Ω) per IEC 60339-2
Connector Type

Gas barrier

Sealing Method

Sealing compound ¹ )


Mechanical Specifications

Plating Outer/InnerSilver/Silver
Length mm (in)300 (11.81)
Outer Diameter mm (in)212 (8.35)
Inner Contact AttachmentThreaded
Outer Contact AttachmentTab Flare

Testing and Environmental

Sealing Volume, cm3 (ounces)cm³ (ounces)250 (8.45)