10-503140-032 Datasheet, PDF (377/437 Pages) Amphenol Corporation – The Interconnection Leader

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MIL-DTL-38999 Circular Connector
Overview
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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 offer 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
• 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
TV-R, Tri-Start, D38999 Series III
• High performance capability series for both
general duty and severe environment
applic­ ations
• Offers the widest range of Subminiature
Fam­ily Mil-Spec qualified options in contact
and connector styles
• Threaded coupling; completely mates in one
turn; crimp termination
• Superior EMI/EMP shielding effectiveness
• Scoop-proof design (recessed pins)
• Available in aluminum, stainless steel and
firewall, or lightweight composite styles
See 38999 section Series III for complete
information on this section.
GENERAL ORDERING INFORMATION
Amphenol MIL-DTL-38999, which feature rear
removable contacts, are normally supplied with a
full complement of power contacts, separately
packaged. Coax, twinax and triax contacts are
ordered by part number as referenced in the part
number charts on the fol­lowing pages of this
catalog, and are substituted for the power
contacts at the time of the cable or equipment
assembly. If the application is for coax, twinax or
triax contacts only, the connector may be ordered
less contacts and no power contacts will be
supplied.
HOW TO ORDER CONNECTORS AND
HIGH FREQUENCY CONTACTS
• Select the Circular Series desired.
JT-R, D38999 Series II
See 38999 section Series II, JT for complete
information on this series.
• Shorter profile connector series for
applicat­ions requiring maximum
space savings
• Bayonet coupling, crimp termination
• Also available in solder termination types
under MIL-DTL-27599 Series II
LJT-R, D38999 Series I
See 38999 section Series I, LJT for complete
information on this series.
• Scoop-proof (recessed pins)
• Bayonet coupling, crimp termination
• Also available in solder termination types
under MIL-DTL-27599 Series II
(See features of each series given briefly on
this page and in-depth in the other sections of this catalog,
which are on-line at www.amphenol-aerospace.com).
Series I - LJT-R Connectors
Series II - JT-R Connectors
Series III - TV-R Connectors
SJT* - SJT-R Connectors
See Amphe-Lite (Industrial 38999 type) Catalog 12-094
• Select the quadrax, differential twinax, coax, twinax and/or
triax contacts or the transition adapters that are needed from
the tables on the follow­ing pages that correspond to the cable
being used.
Amphe-Lite, 38999 Type
SJT-R, 38999 Type
• Select the insert arrangement to accommodate required
number of contacts. Insert patterns for quadrax and
differential twinax contacts are on pages 387,388. Insert
patterns for coax, twinax and triax contacts are on
pages 404-406.
• Complete the connector part number from the connector
series catalog, incorporating the chosen insert pattern
number. See detailed how to order page 389 for ordering
38999, Series III with quadrax and differential twinax
See Catalog 12-094 for complete
information on this series.
• Commercial/Industrial
38999 Series III type
• Cost effective high performance
connector for severe environments or
general duty industrial applications
• Consult Amphenol Industrial
Operations for further information
12-094 catalog is on-line at www.
amphenol-industrial.com.
See the SJT section of this catalog.
• Amphenol proprietary series
(non-MS) which is a further
expansion of the basic JT family,
but incorporates the LJT
scoop-proof design
• Compliant with several
European specifications
contacts. Consult Amphenol for assistance in ordering
38999 circulars with coax, twinax and triax contacts.
• Consult Amphenol Aerospace for ordering information for
connectors with PC tail contacts, and for transition adapters.
• If connector is ordered less contacts, power contacts and/or
NOTE:
NOTE:

SAE AS39029 supersedes MIL-C-39029.
MIL-DTL-38999 supersedes MIL-C-38999.
MIL-DTL-27599 supersedes MIL-C-27599
sealing plugs may be ordered separately to fill out the insert
arrangement.
Contact Amphenol Aerospace for more information at 800-678-0141 • www.amphenol-aerospace.com