Smiths Connectors is now Smiths Interconnect


MarketID in (3,4)
  • Hypertac Hyperboloid contact technology
  • Features to meet military requirements in terms of:
    • Size
    • Modularity
    • Resistance to corrosion
    • Resistance to shock and vibration
  • Extra hardware coding options to ensure efficient mating during field operations
  • Low insertion and extraction force
  • Low cost of ownership
  • IP 68

The 55 way micro circular connector (C55 series) delivers exceptional signal integrity thanks to the superior technical performances of the hyperboloid contact technology. Compact and lightweight, the C55 connector meets the military requirements in terms of size, modularity and corrosion resistance. In addition, it offers additional hardware coding options to avoid mismatching in equipment with several connectors, ensuring the mating and unmating process in field operations is both simple and quick. 

Equipped with 0.5 mm hyperboloid contacts, the C55 offers IP68 sealing and a current rating of 2A at 25°C; the connector’s plug is supplied with solder cup termination, cabling and overmoulding, whilst the receptacle is straight through. The normal configuration has sockets inside the receptacle, but “reverse gender” connection is available on request. 


Number of Ways 55
Nominal Current 2 A
Receptacle Contact Termination Solder Cup, Straight PCB
Plug Contact Termination Solder Cup
AWG 26
Cable Diameter Range Max 20 mm
Contact Dia. 0.50 mm
Contact Resistance <5 mm Ω
Insulator PPS Type GST-40F per MIL-M-245719 V0 per UL 94
Connector Body Stainless steel AISI 303 per ASTM-582
All specifications are subject to change without notice