High Speed Connectors and Contacts

Featured Products

Amphenol Aerospace High Speed Connectors and Contacts

MIL-DTL-38999 with Coaxial, Concentric Twinax, and Triax Connectors

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 specifications, 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 and Widest selection of insert arrangements that can incorporate:

  • Size 8 high speed Quadrax and Differential Twinax contacts for MIL-DTL-38999 Series III (specially modified 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, qualified to SAE AS39029
  • Coax, Twinax, and Triax contacts employ the same retention system as power contacts, simplifying user substitution

MIL-DTL-38999 Catalog

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Quadrax / Differential Twinax for MIL-DTL-38999 Connectors

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 specifications, 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 modified to accommodate keyed contacts)
  • Transition adapters for use in attaching D38999 Series III connectors with high speed quadrax or differential contacts to PCB boards
  • 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

Quadrax / Differential Twinax Catalog

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Split-Pair Quadrax Contacts & Cables

Amphenol offers the high performance interconnect solution for CAT6A type cable

Featured & Benefits

  • Overall higher bandwidth than standard CAT5E quadrax-Supports up to 6.5 Gbps per pair
  • Enhanced crosstalk performance (compared to standard quadrax) due to compatibility with shielded twisted pair of cables
  • Can be used for a variety of high speed applications beyond current quadrax design
  • Four strategically spaced inner contacts form two 100 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 PC tails
  • Can be installed into existing quadrax contact connector cavities
  • Requires modification of MIL-DTL-38999 connector to accommodate keyed contacts

Applications:
For use with, but not limited to, the following electrical protocols:

  • 10/100/1000/10GBASE-T Ethernet
  • DVI
  • USB 2.0, 3.0Serial Rapid IO (up to 3.125 Gbps)
  • PCI-Express 2.0
  • HDMI 1.3a
  • SATA 2.0 (up to 3 GHz)

Split-Pair Twinax Catalog

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Quadrax Contacts

High Speed Quadrax contacts consist of an outer contact with four inner contacts spaced to form two 100 or 150 Ohm controlled impedance differential pair. Both contacts, when used in Amphenol MIL-DTL-38999 Series III and ARINC type connectors, provide an excellent alternative for harsh environment applications such as: Ethernet 100 Base-T-100 Ohm, Gigabit Ethernet 1000 Base-T-100 Ohm, Fibre Channel-150 Ohm, IEEE1394B FireWire-110 Ohm.

Featured & Benefits:

  • 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
  • Requires modification of MIL-DTL-38999 connector to accommodate keyed contacts

Quadrax contacts are gold plated, crimp termination Finish of mating contact parts: supplied with 0.000050 min. gold over nickel on mating parts. Consult Amphenol for availability of other finishes.

Quadrax Contacts Catalog

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Differential Twinax Contacts

Offer several advantages for high data transfer rates, low power consumption and excellent EMI compatibility:

Features & Benefits:

  • Two strategically spaced inner contacts form two 100 or 150 Ohm matched impedance differential pairs
  • Outer contact has rugged wall section for durability
  • Avialable in size 8 crimp termination style
  • Also available in size 8 with PC tails
  • Requires modification of MIL-DTL-38999 connector to accommodate keyed contacts
  • Differential Twinax contacts are gold plated, cimp termination

Differential Twinax Size 8 Contact Performance:

  • Bandwidth: Up to 1.25 GHz
  • Data Rate: Exceeding 2.5 Gbps
  • Voltage Rating: 500 Vrms max. @ sea level
  • Dielectric Withstanding Voltage:
  • 1000 VAC rms between all inner contacts @ sea level 500 VAC rms between inner and outer contacts @ sea level

Differential Twinax Catalog

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Concentric Twinax Contacts

Amphenol Concentric Twinax Shielded Contacts offer high performance shielding capabilities for protection from magnetic and electrostatic interference including nuclear electromagnetic pulse. The contact is crimp terminable to twisted shielded cable and is fully scoop-proof (recessed pins) in MIL-DTL-38999 connectors. The concentric twinax contact is engineered to maintain shielded integrity through a multi-pin cylindrical connector and does not require contact polarization within the insert. Size 8 concentric twinax contacts were developed for use in MIL-STD-1553B Airborne multiplex data bus application. Ideal for this application, is the high performance Tri-Start connector with its fully scoop-proof feature of recessed pins. The concentric twinax contact is crimp terminable to twisted shielded cable. Amphenol Twinax Contacts - designed for use with twinax cable in Data Bus systems.

Twinax contacts provide the following benefits:

  • Protection from magnetic interference
  • Protection from electrostatic interference including nuclear elec­tromagnetic pulse
  • Meets parameters defined by MIL-STD-1553B
  • Maintains shield integrity through a multi-pin circular connec­tor and does not require contact polarization within the insert

Concentric Twinax Catalog

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Triax Contacts

The shielded triax contacts with three conductors are designed for use with triax cable. Amphenol supplies Triax contacts in sizes 8, 10 and 12 for use in MIL-DTL-38999 Series I and III connectors. Triax contacts provide additional shielding when terminated to triax cable having solid or stranded center conductors. Each of the three conductors of the triax contact is separated by dielectric insulation to isolate ground planes and to improve shielding effectiveness. All conductors are crimp terminated for high reliability and ease of assembly. Triax contact may be specified for direct connection to printed circuit boards. For maximum system flexibility, triax contacts may be mixed with coax, twinax and power contacts in a single connector.

FEATURES & BENEFITS

  • Incorporates three conductors, designed for use with triax cable
  • Each of the three conductors are separated by dielectric insulation to isolate ground planes
  • Shielding effectiveness is improved with two isolated shields
  • May be specified for direct connection to printed circuit boards
  • May be mixed with coax, twinax and power contacts in a single connector

Triax Contacts Catalog

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Coaxial Contacts

High speed Coax contacts within a connector provide the shielding protection, and many cases the RF/ microwave performance, needed in the circuitry of many applications.

All popular series of Amphenol circular connectors and many rectangular connectors are available with coax contacts. Diameters are standardized in sizes 4, 8, 12 and 16 so that coaxial contacts may be interchanged with power contacts in connector arrangements which include those sizes. Popular RG cable types and a variety of other commercial coaxial cables can be accommodated.

FEATURES & BENEFITS

  • Large crimping area assures low contact resistance and high tensile strength
  • Back insulator positively captivates inner contact against axial loads
  • Front insulator provides closed entry for socket inner contact
  • Recessed inner contact is protected
  • Outer contact has rugged wall section for durability

Coaxial Contacts Catalog

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High Frequency Contacts

Amphenol and SV Microwave (an Amphenol company) offer DC to 40 GHz high frequency size 8, 12 and 16 coaxial contacts for the D38999 Series III housing and standard inserts. These contacts allow any application to continue to use the D38999 connector and be able to expand the use to include the microwave transmission lines.

FEATURES & BENEFITS

  • Superior electrical performance and high frequency capability
  • Blindmate advantage and maintenance of an accurate phase length when mated
  • Can be terminated to a multiple of cable types depending on the application
  • Uses standard interfaces based on MIL-STD-348, and can be installed in any MIL-DTL-38999 size 8, 12 or 16 insert
  • Unique “Float Mount” technology allows for consistent microwave performance while maintaining tight mechanical tolerances

High Frequency Contacts Catalog

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PCB Tails High Speed Contacts

PC Tail shielded contacts provide a cost effective packag­ing solution for limited space applications where connec­tors are attached to printed circuit boards. High reliability is assured with factory pre-assembled contacts and stan­dardization termination to the board. PC Tail contacts are available for MIL-DTL-38999 Series I and III circular connectors and also for ARINC 404, ARINC 600 and R27 rect­angular connectors.

The Printed Circuit tail contacts are currently supplied as follows:

  • 8, 12 and 16 Coax
  • 8, 10 and 12 Twinax
  • 8, 12 Triax

PCB Tails Catalog

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Octonet Contacts

Superior Ethernet contact system for MIL-DTL-38999, Series III. Eight strategically spaced inner contacts form four 100 Ohm matched impedance differential pairs.

Features

  • Available in size 8 crimp termination style
  • Also available in PC Tails
  • Can be installed in existing size 8 Quadrax cavities
  • Meets performance specifications of CAT-6A cable
  • 10G Ethernet compliant
  • Overall higher bandwidth than standard CAT5E Quadrax-supports up to 4.0 Gbps per pair
  • Enhanced crosstalk performance (compared to standard Quadrax)
  • Supports wire ranges 26 to 24 gauge
  • Requires modification of MIL-DTL-38999 connector to accommodate keyed contacts
  • Operating Temp -65°C to 175°C

Benefits

  • Easy drop-in replacement to installed connectors no need to redesign
  • Self removing contact feature - no extra contact extraction tool needed (24 Gauge only)

Octonet Contacts Catalog

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OCS Oval Contact System

The OCS (Oval Contact System) is the newest D38999 interconnect product offering from Amphenol High Speed Solutions, it provides many advantages for high speed data transmission.

Features & Benefits

  • High Density: A wide variety of insert arrangements are available
  • Patterns range from 1 to 21, 100 Ohm differential pairs capable of delivering data transfer speeds of 10Gbps per pair
  • MIL-DTL-38999 shell styles available from size 9 to 25
  • Front release rear removable contact system for easy repair
  • Solder or PCB tail contacts available
  • Meets environmental requirements of MIL-DTL-38999
  • Uses off-the-shelf Mil Spec Backshells

OCS MECHANICAL/PHYSICAL PROPERTIES

  • Mating Cycles 500 (min.)
  • Operating temperature –65C to 175C
  • Contact materials and platings consistent w/AS39029

OCS SIGNAL INTEGRITY PERFORMANCE

  • Data rate: 10Gbps per pair
  • Insertion loss: <0.3 dB up to 5 GHz
  • Return loss: >20 dB up to 5 GHz
  • NEXT and FEXT: >40 dB up to 5 GHz
  • Differential to common mode conversion:>50 dB up to 5 GHz

OCS Catalog

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Catalogs

Circular Connectors Brochure

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Mil-Spec to Commercial Prefix Guide

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2016 Authorization Letter

2016 Authorization Letter

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