Amphenol
Aerospace
38999
I
II
III
Matched Impedance Coaxial Contacts
for MIL-DTL-38999
Amphenol
®
Matched Impedance Size 12 Coaxial Contacts for
RF/Microwave, High Frequency and High Performance Requirements
The matched impedance coax contact is available in size 12. It incorporates a captivated
inner contact which “snaps into” the outer contact preventing displacement or pull back
of the inner contact in situations where the cable may be bent.
Matrix 2
26482
SJT
TYPICAL MATCHED IMPEDANCE
COAX SOCKET CONTACT
has socket outer contact with a captivated
pin inner contact
83723 III
Matrix Pyle
TYPICAL MATCHED IMPEDANCE
COAX PIN CONTACT
has pin outer contact with a captivated
socket inner contact
Crimp Rear
Release Matrix
26500 Pyle
Design features and benefits of the Matched Impedance:
• For use in 90 degree angle or bent cable applications
• Provides 50 ohm matched impedance resulting in low VSWR
and low insertion loss
• Frequency range for a mated pair extends to 3 GHz and beyond,
higher than other coaxial contacts previously offered.
• Ideally suited for D38999 high performance and MIL-STD-1760
high band coaxial contact requirements
5015
High Performance Size 12 Coax
50 Ohm matched
LJT-R, MIL-DTL-38999 Series I, JT-R, MIL-DTL-38999 Series II, and
TV-R, MIL-DTL-38999 Series III
Use with Cable
RG316,
T-Flex-405
RG-316,
T-Flex-405
RD316,
Filotex,
ET124962,
M17/152-00001
JN1088WT
PAN6422XQ
RG178,
Gore CXN 3403
RG178,
Gore CXN 3403
SFT-316-TR
Semflex SW060
Comment
M39029/102/103
JT-R, MIL-DTL-38999
Series II
M39029/102/103 Type
21-33651-17
(L-2092-F)
(Termination Instruction (Termination Instruction
Sheet)***
Sheet)***
Matched Impedance
Coax Contact Performance:
Electrical Specifications:
Pin
Socket
21-33651-11
(L-2092-C)
21-33650-11
(L-2092-C)
(L-2092-P)
21-33729-11
21-33650-17
(L-2092-F)
Fiber Optics
• Contact impedance = 50 ohms nominal
• Frequency range = 0–3 GHz Operable at higher
frequencies depending on cable selection.
Consult Amphenol for details.
• Dielectric withstanding voltage
(for a mated pair):
At sea level = 1000 VRMS
At 50, 000 ft. = 250 VRMS
• Insulation resistance: 5 gigaohms min. @ 25°C
• VSWR: 1.20 + .04F (F in GHz) max. up to 3 GHz
• Insertion Loss: .11 fGHz dB max.
Environmental Specifications:
EMI Filter
Transient
Circuit Board
Printed
JN1104*50C
PAN6841*50C
M39029/102/103 Type
JT-R, MIL-DTL-38999
Series II
M39029/102/103 Type
M39029/102/103 Type
M39029/102/103 Type
21-33213-42
21-33651-12
(L-2092-E)
(L-2092-K)
21-33214-42
(L-2092-D)
• Thermal limits: –55 ° to 200°C
Mechanical Specifications:
21-33650-12
21-33650-18
(L-2092-K)
(L-2092-K)
21-33651-18
High Speed
Contacts
21-33729-18
21-33651-22
(L-2092-N)
21-33651-25
21-33651-26
• Mating: slide-on
• Mounting: conforms to M39029/102 & /103
envelope dimensions
21-33650-22
(L-2092-N)
21-33650-25
21-33650-26
Options
Others
394
Semflex SW086
(solid inner
conductor)
* Add P or S for pin or socket
CONTACT ORDERING: Example number given in chart 21-33651-11 should be ordered as 21-033651-
011. Adding Zeros is necessary for Amphenol ordering process on all contact numbers.
** *Termination instructions are packaged with each contact
and can be found on-line at:
www.amphenol-aerospace.com/serviceinstructions.asp
Contact Amphenol Aerospace for more information at 800-678-0141 • www.amphenol-aerospace.com
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