Circular Connectors with PCB Contacts

Amphenol Aerospace
Part Number Information
Part #: Price/Availability:
MIL-DTL-38999 Buy Now

Amphenol provides circular connectors with PC Tail contacts. This catalog section features the 38999 Series III, II, and I connectors which are ideal for printed circuit board applications, either with rigid attachment or with flex print assembly attachment. 


  • Lightweight, compact, high density and high reliability cylindrical 
  • Operating voltage to 900 VAC (RMS) at sea level 
  • Environmentally resistant 
  • Solder or crimp rear release contacts in mating plug 
  • Series I (LJT) - Bayonet coupling 
  • Scoop-proof (recessed pins) offers maximum contact protection Series II (JT) - Bayonet coupling 
  • For applications requiring maximum weight/space savings and reliability Series III (Tri-Start) - Threaded, quick coupling in one complete turn 
  • Designed for general duty as well as severe environmental applications 
  • Superior EMI shielding with grounding fingers and metal-to-metal mating 
  • Filter/Transient protection versions available 
  • Scoop-proof contact protection 
  • Stainless steel firewall versions, and composite versions 
  • Available in Hermetics


  • Military and Commercial Aviation 
  • Space & Satellites 
  • Military Vehicles 
  • Shipboard 
  • Instrumentation