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10-503140-032 Datasheet, PDF (396/437 Pages) Amphenol Corporation – The Interconnection Leader
Typical Contact Installation Instructions Amphenol
for Coax Contacts
Aerospace
The following is an example of a contact instruction sheet that would be shipped within the package of contacts for a Crimp, Size 12
Coax Con­tact for use in Subminiature, D38999 connectors. The sheet provides detailed instructions for assembling the component
parts and for crimping the contact to coaxial cable, along with the recommended cable and tooling to be used. Installation instructions
are included within all contacts for D38999 connectors. For installation instructions for other connector series, there are separate
documents (not included in packaging of parts) as follows: L- 633 for Miniature solder types, L-613 for Miniature SE types, L-660 for
Miniature CE types, and L-650 for MS/Standard and Heavy Duty types. For any other instructions needed, consult Amphenol. Most
installation instructions can be found on-line at www.amphenol-aerospace.com (from home page, go to Service Instructions and enter
contact part number or instruction sheet number).
21-33651-11 (PIN)
21-33650-11 (SOCKET)
Contact, Pin and Socket, Coaxial,
Type LJT-R & TV-R, (MIL-DTL-38999 Series I & III) Crimp, Size 12
Installation Instructions
See table on reverse side for coaxial cable recommended and crimp
tool information.
A. 1. Slide outer crimp ferrule over cable outer jacket as shown.
2. Strip cable outer braid as illustrated. Ends must be cut cleanly
and at right angles to the axial plane of the cable. The cable
must not be deformed while making cuts.
3. Flare outer braid, then strip cable dielectric as shown.
B. 1. Assemble inner contact assembly over cable center
conductor and cable dielectric until inside bore of bushing
butts against cable dielectric.
2. Cable center conductor must be visible through the inspection
hole in the inner contact wire well.
3. Crimp inner contact wire well using crimp tool listed in table.
C. 1. Carefully slide outer contact assembly over inner contact
assembly and under cable outer braid until inner contact butts
against insulator shoulder as illustrated. (Inner contact
assembly will snap into the locked position when fully assem­
bled inside the outer contact assembly.)
2. Bring outer crimp ferrule forward over cable outer braid as
illustrated. (Continue to push the inner contact assembly fully
forward while bringing the outer crimp ferrule into position.)
3. Crimp outer crimp ferrule using crimp tool listed in table ( .156
Max. over ferrule after crimping). Trim excess braid ahead of
crimp ferrule, if necessary.
CONTACT INSERTION INTO CONNECTOR
Using insertion tool (part number M81969/8-09 or M81969/14-04),
insert contact assembly into rear connector grommet hole. Contact
must be aligned with hole and not inserted at an angle. Push forward
until contact is felt to snap into position within insert. Remove tool.
CONTACT REMOVAL FROM CONNECTOR
Position removal tool (part number M81969/8-10 or M81969/14-04)
around cable and slide tool down wire until tool tips enter rear grom­
met and come to a positive stop. Hold tool tip firmly against positive
stop on contact, grip wire and simultaneously remove tool, contact
and cable.
21-33651-11 (PIN)
21-33650-11 (SOCKET)
.330 REF.
.135
.195
OUTER CRIMP FERRULE
CABLE
OUTER JACKET
A1 & A2
CABLE
DIELECTRIC
CABLE
OUTER BRAID
CABLE OUTER BRAID
.165
A3
CABLE
CENTER
CONDUCTOR
CABLE
DIELECTRIC
.165
REF.
CABLE CENTER CONDUCTOR
INNER CONTACT ASSEMBLY
(SOCKET SHOWN FOR REFERENCE)
CABLE DIELECTRIC
INSPECTION HOLE
OUTER CONTACT ASSEMBLY
(PIN SHOWN FOR REFERENCE)
INNER CONTACT
MUST BUTT INSULATOR
B
CABLE DIELECTRIC
MUST BUTT
BUSHING
.010 / .030
OUTER FERRULE
C
CABLE
OUTER BRAID
L-2092-C
October 2001
FSCM77820
Tools
Amphenol ®
Part Number
Description
Coaxial Cable
Accommodated
Inner Contact
Crimp Tool
Setting
Positioner
(Daniels)
Outer Contact
Tool
Positioner
Matched Impedance*
RG316
(M17/113-RG316)
MH992 (Daniels)
5
21-33651-11
Size 12 Coax
Pin
RG179
(M17/094-RG179)
MH992 (Daniels)
4
Matched Impedance*
RG316
(M17/113-RG316)
MH992 (Daniels)
5
21-33650-11
Size 12 Coax
Socket
RG179
(M17/094-RG179)
MH992 (Daniels)
4
K1360
K1360
K1360
K1360
M22520/5-01
M22520/5-03 (A)
or
M22520/5-35 (B)
* Matched Impedance applies when contacts are terminated to RG316 cable only.
Contact Amphenol Aerospace for more information at 800-678-0141 • www.amphenol-aerospace.com 395