CeeLok FAS-T Connectors

TE Connectivity
Part Number Information
Part #: Price/Availability:
21023 Buy Now
21024 Buy Now

TE’s CeeLok FAS-T connector is the most rugged, small form factor, 10 Gigabit Ethernet, field terminable I/O connector in the Aerospace, Defense and Marine marketplace. It has been designed to perform in some of the most extreme environments in the industry, while providing substantial size and weight savings via its small shell size 8 form factor.

TE also offers associated products such as Band Straps, Termination Devices, Molded Boots, Wire and Cable and complete harnessing capabilities that complement this exciting new connector.


  • 1 Gbit-Ethernet and 10 Gbit-Ethernet when used with Cat 5e, Cat 6A or Cat 7 cables
  • Crimp snap, 39029-style contacts for easy termination and field repairability
  • Backshell integrated in plug body provides low profile, low cost, low weight strain relief and EMI protection
  • T-shaped pin pattern improves SI through uniform crosstalk cancellation
  • Compatible with multiple braid terminations, adapter styles and seal boots
  • Scoop-proof design
  • Insert assembly mechanically retained for ≤ 25 lb. retention force
  • Robust coupling ring mechanism
  • Size 8 shell saves weight and space


  • Military
    • Rotary and Fixed Wing
    • Space
    • Ground Vehicles
    • Shipboard
    • Soldier Systems
    • C4I
  • Missiles and Smart Munitions
  • Commercial and Civilian Aircraft
    • In Flight Entertainment & Connectivity
    • Avionics
    • Production Breaks (high speed signal)
    • Communication Systems