F300 – FBeam Junior

Ridgemount Technologies Ltd has over 30 years of experience designing, developing and manufacturing fibre optic connectors and cable harnesses for a wide variety of industries.

The F-Beam ® 300 series of Expanded Beam Connectors have been designed for applications used in the most demanding harsh environment including military tactical communications, outside broadcast, petrochemical plant, mining and offshore systems.

The MIL-DTL-83526 hermaphroditic interface negates the need for in-line adaptors or male and female mating halves simplifying connectivity architecture and reducing stock holding.


  • Tactical Military Communication Systems
  • Remote Broadcasting Installations
  • Antenna Systems
  • Harsh Environment Oil & Gas Monitoring

Optical Loss

50/125 at 850/1300nm:
1.5 dB maximum (typical 0.8 dB)

9/125 at 1310/1550nm:
2.0 dB maximum (typical 1.0 dB)

Return Loss

50/125 at 850/1300nm:
>23 dB Mated

9/125 at 1310/1550 nm:
>32 dB Mated


3000 mating minimum

Operating Temperature

-57 to +85°C

Storage Temperature

-57 to +85°C

Water Immersion

15m for 24 hours


10-500Hz 0.75 amplitude @10g


0.9m x 8 off


4000 bumps @ 40g


2000N (Cable dependent)

  • Lanyard Dust Caps – Metal or Plastic
  • Deployable Cable Reels
  • Cleaning Kits
Any questions? Get in touch with a member of the team today.