Twinax/Triax Connectors / Specifications
Trompeter offers a broad line of connectors manufactured to
meet or exceed the Mil-Specs governing twinax connectors. In
fact, Mil-PRF-49142 was created from the Trompeter concentric
twinax/triax connector design.
The following information reflects the specification requirements
for each family of connectors in both twinax and triax applications.
Use this chart to determine the proper connector type to be used
in your application, based on the environment and electrical
requirements of your design. Trompeter’s technical support team
is available to answer any specification questions you may have.
The following is the latest list from the
MIL-STD-1553B supply:
Trompeter
Connector
Series
MIL-Spec Triax
Series
Bayonet Typi-
cal Lug Count
Available
Threaded
Equivalent Coax
Series
Gender
Trompeter Number:
PL75-47
PL375C-201
TRB
TRC
TRS
70
3
2
3
3
Yes
Yes
Yes
Yes
Normal
Reverse
Normal
Either
BNC
N
80
150
450
M-BNC
n/a
PL75C-201
1553
PL155AC-201
PL3155AC-201
PL155AC-201
PL155AC-201
PL3455ACS-201
PL455ACP-201
MIL-STD-1553B Data Bus General Specifications Guide
70 Series
TRB/TRT
80 Series
TRC/TRN
150 Series
TRS/TTM
450 Series
TCS
Characteristic Requirements
Nominal Impedance
Non-constant
0-500 MHz
400 VRMS
100 VRMS
5000 MΩ
Non-constant
0-500 MHz
500 VRMS
125 VRMS
5000 MΩ
Non-constant
0-500 MHz
400 VRMS
100 VRMS
5000 MΩ
Non-constant
0-2 MHz
900 VRMS
N/A
Frequency Range
Voltage Rating (max.) @ sea level
Voltage Rating (max.) @ 70,000 ft.
Insulation Resistance
5000 MΩ
900 VAC
Dielectric Withstanding Voltage
1200 VRMS
1500 VRMS
1200 VRMS
(between center cond. & inter. cond.)
Dielectric Withstanding Voltage
(between inter. cond. & outer cond.)
500 VRMS
800 VRMS
500 VRMS
500 VRMS
500 VRMS
125 VRMS
900 VAC
RF High Potential Withstanding Voltage
(between center cond. & inter. cond.)
1000 VRMS
900 VAC @ 60 Hz
N/A
RF High Potential Withstanding Voltage
200 VRMS
350 VRMS
(between inter. & outer cond.)
@ 5-7.5 MHz
@ 5-7.5 MHz
Specifications continued on page 3...
* Specifications are minimum unless otherwise stated. Trompeter connectors are designed to exceed all minimum specifications.
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