Lifetime Connectivity

158EIA-HCA78-020
7/8" EIA Connector for 7/8" Coaxial Cable, RAPID FIT™ Sealing compound

Rev : B | Rev date : 10 Apr 2026

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 EIA 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. Connectors are available in sizes matching the nominal cable size. EIA connectors provide optimal power handling for the complete transmission line system.

Features / Benefits

  • 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
158eia-hca78-020.jpg
Structure
Cable Type Air Dielectric
Cable Size 7/8"
Model Series HCA78-50 Series
Connector Interface Size 1-5/8" EIA
Mechanical Specifications
Sealing Volume 5cm³ (0.169ounces)
Inner Conductor Material / Coating Copper-alloy / Silver
Outer Conductor Material / Coating Copper-alloy / Nickel
Sealing Volume 5cm³ (0.169ounces)
Sealing Method Silicone compound, PLAST 2000 - See Note 2.
Electrical Specifications
Nominal Impedance 50 Ω
Connector Frequency Range 0 - 3.0 GHz
Frequency Range VSWR Return Loss
DC - 1000 MHz 1.02 40
1000- 2300 MHz 1.05 32.2
2300 - 3000 MHz 1.07 29.4
Testing and Environmental
Ingress Protection (IP) Rating IP 68
Note
  1. The connector is converted to gas pass by drilling through the pilot hole in the insulator.
  2. Sealing compound must be ordered separately.
  3. Connector does not include an inner connector.

Installation Instruction

Installation Instructions

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