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1-5/8" EIA Connector for 7/8" Coaxial Cable, RAPID FIT™ Sealing compound

Rev : E | Rev date : 13 May 2016
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 CELLFLEX® 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 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. EIA connectors provide optimal power handling for the complete transmission line system.


  • Single-piece design for Fast and Easy Installation
    Reliable and simple attachment avoids unnecessary connector adjustments and provides outstanding performance every time. Saves time and provides cost savings.
  • Robust Mechanical Design
    Low and consistent intermodulation performance guarantees outstanding system sensitivity.
  • Excellent Electrical Performance
    Consistent and repeatable low VSWR 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.

RAPID FIT™ Connectors

Technical features

General Specifications

Transmission Line TypeCoaxial Cable
Cable Size7/8
Cable TypeFoam Dielectric
Model SeriesLCF78-50A-Series, RCF78-50A-Series
Connector Interface1-5/8" EIA
Connector TypeRAPID FIT™
Sealing MethodSealing compound ¹ )

Electrical Specifications

3rd Order IM Product @ 2x20 Watts dBc<-156
Maximum Frequency GHz3.3
VSWR, Return LossVSWR (dB)0 &lt; f ≤ 1.0 GHz: 1.02 (40)
1.0 &lt; f ≤ 2.7 GHz: 1.03 (36.6)
2.7 &lt; f ≤ 3.7 GHz: 1.06 (30.7)

Mechanical Specifications

Plating Outer/InnerSilver/Silver
Length mm (in)110 (4.3)
Outer Diameter mm (in)90 (3.5)
Inner Contact AttachmentSpring Finger
Outer Contact AttachmentSpring Finger


Wrench size front mm (in)30 (1-3/16)
Wrench size rear mm (in)30 (1-3/16)
Trimming ToolTRIM-Series-A

Testing and Environmental

Waterproof LevelIP68
Sealing Volume, cm3 (ounces)cm³ (ounces)7 (0.26)

Dimensions in mm

External Document Links


¹) The sealing compound must be ordered separately.