Table of Contents
Page
INTRODUCTION
Amphenol
®
Coax, Twinax and Triax Contacts
Cable Usage Guides
COAX, TWINAX AND TRIAX CONTACT INFORMATION
BY CONNECTOR FAMILIES
Subminiature Cylindrical Connectors
Includes MIL-DTL-38999 types:
LJT-R, JT-R, TV-R, Amphe-Lite, and SJT-R Series
Miniature Cylindrical Connectors
Includes MIL-C-26482 types
Standard and Heavy Duty Cylindrical
Connectors
Includes MIL-C-5015 and
MIL-C-22992 types
Rectangular Connectors
TYPICAL CONTACT INSTALLATION
INSTRUCTION FOR COAX CONTACTS
ADDITIONAL CONTACT STYLES
AND CONNECTOR CONFIGURATIONS
Amphenol Sales Office and
Distributor Listing
0 -3
4,
5
6-21
22-29
30-33
34, 35
36
37
Back Cover
If more information is needed concerning the products in this
publication, or if you have any special application needs, please
contact your nearest Amphenol sales office or Amphenol Cor-
poration at the address listed below.
Amphenol Corporation
Amphenol Aerospace
40-60 Delaware Avenue
Sidney, New York 13838-1395
Telephone: 800-678-0141
607-563-5011
Fax:
Website:
607-563-5157
www.amphenol-aerospace.com
Amphenol Aerospace is a Certified ISO 9001 Manufacturer.
Amphenol Provides
Interconnection Solutions
Amphenol is a leading designer, manufac-
turer and marketer of interconnection prod-
ucts, providing interconnects for military,
aerospace and industrial applications
worldwide. Offering the broadest range of
products in the interconnection products
industry, Amphenol supplies an immense
array of connector series; many series
within the military arena were developed by
Amphenol. The Amphenol Corporation is
known worldwide as the system designer’s
choice for electrical and optical connec-
tions when performance, quality and high
reliability are paramount.
Amphenol offers a very wide
range of contacts for most
mil-spec and many propri-
etary connectors.
You can be assured of inter-
connection compatibility
when you come to Amphenol
for your contact needs as well
as your connector needs.
Amphenol’s expertise in inter-
connection solutions assures that your contacts will mate properly
and will perform to the application specifications of your particular
requirements.
This Contact Catalog provides information on the Shielded Coax, Twinax and
Triax Contacts that Amphenol supplies for multi-pin connectors.
• Coax Contacts - designed for RF/microwave and shielded wire applications.
• Twinax Contacts - shielded twisted pair of conductors, designed for digital high
speed data transmission systems.
• Triax Contacts - designed for shielded wire applications.
This catalog helps you determine the best coax, twinax or triax contact for your
shielded wire requirements. Contact data is given according to connector series as
follows:
• Contacts for Cylindrical connectors
• Subminiature (MIL-DTL-38999* types)
• Miniature (MIL-C-26482 types)
• MIL-C-5015 types and Heavy Duty Cylindricals.
• Contacts for Rectangular connectors
Each section provides contact application data, insert arrangement availability and
ordering information for contacts.
The Cable Usage Guide is a key reference to help guide you in selecting the con-
tacts best suited to your needs. Since most shielded wire applications start with a
fixed requirement for cable type, the guide refers you to each Amphenol connector
family utilizing contacts which are com-
patible with the cable characteristics.
*Note: MIL-DTL-38999 supersedes MIL-C-38999
Part of Amphenol’s 675,000 sq. ft. facility
in upstate NY is a large contact produc-
tion area which produces the wide variety
of contacts for the many families of cylin-
drical and rectangular connectors also
manufactured at Amphenol.
High technology computer driven centers
at Amphenol Aerospace and Amphenol
Industrial Operations result in quality pro-
duction and cost reductions with shorter
lead and delivery times.
1
Amphenol has the interconnection expertise
to meet almost any connector application
requirements in military aerospace, with an
immense range of connector choices and
contact choices.
Shielded Coax &
Twinax Contacts
For multi-pin connector versatility
Amphenol
®
Shielded Contacts
Provide Design Versatility for Electrical Circuitry
Optional choices, other than standard crimp or solder 500 cycle and
1500 cycle contacts, are often required for high frequency interconnec-
tions. Contacts frequently require shielding to eliminate interference
from outside electrical sources. Amphenol offers shielded contacts for
RF applications as well as balanced high sensitivity circuits.
AMPHENOL
®
SHIELDED COAXIAL CONTACTS
within a con-
nector provide the shielding protection, and in many cases the RF/
MIL-DTL-38999 Lanyard “Breakaway” Connector
microwave performance, needed in the circuitry of many applications.
with Concentric Twinax contacts,
Qualified for MIL-STD-1760.
All popular series of Amphenol cylindrical connectors and many rectan-
gular 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 con-
tacts in connector insert arrangements
which include those sizes. Popular RG
cable types and a variety of other com-
mercial coaxial cables can be accommo-
dated. See page 7 for coax contact
Shielded Coax Contacts
performance data.
Matched impedance size 12 coax contacts are also available
(see page 8). The use of coax contacts within a connector, compared to
the use of individual coaxial/shielded connectors, offers advantages of
MIL-DTL-38999 with
savings in space and weight and no cross-mating difficulties. Coax and
Shielded Coax Contacts
standard contacts may be mixed within the connector to meet special
signal needs. The connector itself offers further protection and environ-
mental integrity through the grommets and seals used, and coaxial
junction is protected by the connector outer shell.
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 twi-
nax contact is engineered to maintain shield integrity through a multi-pin cylin-
drical 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 applications. Ideal for this application need 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.
Size 12 concentric twinax contacts were developed for SAAB. They can be
used in any size 12 cavity of D38999 I, II or III or SJT connector.
Amphenol® RCT (Reduced Component Twinax) contacts are another contact
termination solution for MIL-STD-1760 and MIL-STD-1553 Data Bus require-
ments. It features 3 user-assembled components and is available in size 8 and
size 10 contact sizes. Termination is completed in only two crimping opera-
tions.
Twinax contacts are covered on pages 12-15. Supporting application tools are
available for crimping as well as installation and removal of contacts from con-
nectors. Consult Amphenol, Sidney, NY for tooling information.
Concentric Twinax Size 12 Contacts
Concentric Twinax Size 8 Contacts
RCT (Reduced Component Twinax)
Contacts, Size 8
2
Twinax &
Triax Contacts
For multi-pin connector versatility
AMPHENOL
®
TWINAX CONTACTS FOR PRINTED CIRCUIT
BOARD APPLICATIONS
Printed circuit tail twinax contacts provide a
cost effective packaging solution for limited space applications where con-
nectors are attached to printed circuit boards. They are available for MIL-
DTL-38999 Series I and III cylindrical connectors and also for ARINC 404
and ARINC 600 rectangular connectors. High reliability is assured with fac-
tory pre-assembled contacts and standardized termination to the board.
See pages 17-18 for performance data and ordering of PC tail twinax con-
tacts, and consult Amphenol for any further
information needed.
D38999 Connectors with PCB Tail
Twinax Contacts
AMPHENOL
®
SHIELDED CONTACTS
FOR GROUND PLANE
CONNECTORS
Amphenol offers MIL-DTL-38999 Series III
connectors for data bus, LAN and coax/
triax/twinax transmission lines with conduc-
tive inserts that ground the outer conductor
of the coax, triax or twinax contact to the
Amphenol offers a wide variety of PC
shell. These connectors are sold “less
Tail Twinax contacts
contacts”. They will accommodate size 8 & 12
coax, triax or twinax contacts or size 16 coax contacts.
AMPHENOL
®
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, II and III connectors.
Triax contacts provide additional shielding when terminated to triax cable
having solid or stranded center conductors. See cable compatibility in the
Cable Usage Guide for Triax contacts on page 5, and see performance data
and ordering of triax contacts on pages 16-18. 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 contacts
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.
Ground Plane Connector with
Metallic Insert and Concentric
Twinax Contacts
Triax Contact
AMPHENOL
®
OFFERS A WIDE RANGE OF OTHER CONTACT OPTIONS
For information on other types of contacts supplied by Amphenol such as:
• Standard 500 cycle and 1500 cycle contacts
• Thermocouples
• Wire wraps
• Printed Circuit Board Contacts
• Low Mating Force Brush Contacts
• Press-fit Compliant Contacts
• ARINC contacts
• Fiber Optic Termini
• RADSOK sockets
Consult Amphenol Connector Series catalogs. Catalogs are on-line on our website: www.amphenol-aerospace.com.
The individual series catalogs will list the availability of the contact types that can be incorporated into the series.
Page 37 of this catalog gives a brief overview of some of these additional contact types.
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