Quadrax Contacts, MIL-DTL-38999, Series III

Amphenol® Connectors are ideally suited for the incorporation of shielded contacts for high performance interconnection applications The circular family is built around MIL-DTL-38999 specifcations, with Mil-approved and commercial styles offered.
Normal operating voltage for circulars with power contacts only is up to 900 VAC (RMS) at sea level.

The MIL-DTL-38999 family offers these features for contact termination flexibility:
• Widest selection of insert arrangements that can incorporate:
• Size 8 high speed Quadrax and Differential Twinax contacts for MIL-DTL-38999 Series III
   (specially modifed to accommodate keyed contacts)
• Transition adapters for use in attaching D38999 Series III connectors with high speed
   quadrax or differential contacts to PCB boards
• Size 8, 12 and 16 Coax contacts
• Size 8 and 12 Twinax contacts
• Size 8, 10 & 12 Triax contacts
• Wide selection of connector shell styles and sizes
• Scoop-proof recessed design in LJT-R, TV-R and SJT-R connectors provide
   protection for contacts
• Standard power contacts are crimp rear release, qualifed to SAE AS39029
• Coax, Twinax, and Triax contacts employ the same retention system as power
   contacts, simplifying user substitution

Amphenol® Quadrax Contacts -Offer several advantages for high data transfer rates, low power consumption and excellent EMI compatibility:
• Four strategically spaced inner contacts form two 100 or 150
   Ohm matched impedance differential pairs
• Outer contact has rugged wall section for durability
• Available in size 8 crimp termination style
• Also available in size 8 with PC tails (see page 233)
• Requires modifcation of MIL-DTL-38999 connector to
   accommodate keyed contacts