Tri-Power Connectors with RADSOK Technology

Amphenol Aerospace
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The Amphenol Power Connectors incorporate the proven design of the Mil-DTL-38999 Series III Tri-Start connectors with the evolving technology of the High Power Radsok® contacts. This newly designed product is the future of power connectors enabling customers to choose contacts ranging from 70 to 250 amps allowing more power in a smaller connector.

Using standard shell sizes for 38999 connectors will allow the Power Connectors to mate to existing mounting holes without changing the customer’s original design. Amphenol will also be incorporating our new alternate to Cadmium Plating called Durmalon. Durmalon is a Nickel-PTFE that is proven to meet Coupling Torque, Shell to Shell Conductivity, and Durability tests required by the MIL-DTL-38999 salt spray requirements.


  • High Reliability
  • Low Contact Engagement/Separation Forces
  • Low Contact Resistance
  • High Mating Cycle Durability


  • Aerospace
  • Commercial Vehicles
  • Military Ground Support