COPPERCATALOG datasheet(5/56 Pages) AAO

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Contact Amphenol Aerospace for more information at 800-678-0141 • www.amphenol-aerospace.com

Amphenol

Aerospace

Dualok

III

SJT

38999

PCB

Accessories

Herm/Seal

Aquacon

Fiber

Optics

Contacts

Connectors

Cables

HIgH

SPeeD

CONCENTRIC

TWINAX

SHIELDED

CONTACTS

High performance shielding

capabilities are available with

Concentric Twinax contacts These

are designed for protection from

magnetic and electrostatic

interference including nuclear

electro-magnetic 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 shield

integrity through a multi-pin circular

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

High Speed Coax and Twinax Contacts

Overview

Optional choices, other than standard crimp or solder 500 cycle and 1500 cycle

contacts, are often required for high frequency interconnections Amphenol offers

shielded contacts for RF applications as well as balanced high sensitivity circuits

SHIELDED 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

Amphenol® Shielded Contacts

provide design versatility for

electrical circuitry Shielded contacts

are used to eliminate interference

from outside electrical sources,

when standard crimp or solder contacts

are not enough

MIL-DTL-38999 Lanyard “Breakaway”

Connector with Concentric Twinax

Contacts, Qualified for MIL-STD-1760

Shielded Coax Contacts

Concentric Twinax Contacts Size 8

MIL-DTL-38999

Connector with

High Speed Coax

Contacts

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 accommo-

dated See page 244 for coax contact performance data Matched impedance size 12

coax contacts are also available (see page 248) The use of coax contacts within a

connector, compared to the use of individual coaxial/shielded connectors, offers

advantages of savings in space and weight and no cross-mating difficulties Coax and

standard contacts may be mixed within the connector to meet special signal needs

The connector itself offers further protection and environmental integrity through the

grommets and seals used, and coaxial junction is protected by the connector

outer shell

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

Size 8 & 12 coax, triax or twinax contacts or size 16 coax contacts are available in

Ground Plane Connectors (See photo preceding page) These are

MIL-DTL-38999 Series III connectors for data bus, LAN and coax/triax/twinax

transmission lines with conductive inserts that ground the outer contact conductor to

the shell They are sold“less contacts”

MIL-DTL-38999

Connector with

Concentric Twinax

Contacts

Size 8

Coax

Pin Contact

Concentric Twinax

Size 12 Contacts

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