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Specifications for TNC Connectors
TNC Series connectors are miniature sized, and weatherproof and are electrically similar to BNC Series, except that they
have a coupling method which utilizes a screw system giving them additional resistance against shock and vibration.
They are especially designed for use from DC to 18 GHz, in vibration exposed equipment like in commercial and
military radio telecommunications systems and avionics equipment. These connectors are particularly useful for
applications in computer and medical equipment and test instrumentation. TNC Series have a constant impedance of 50
ohms and are available in a variety of cable configurations.
MATERIALS
Connector Parts
Connector Body and Parts
Male Contact Pin
Material
Equivalent Standard †
ISOCuZn38Pb2 Body Part
QQ-B-626
Brass
Brass
Commercial Grade
Outer Contact
Zinc Alloy/Brass
Brass
------
QQ-B-750
Socket Contact
Beryllium Copper
Phosphor Bronze
Annealed Copper
Teflon
QQ-C-530/MIL-H-7199
CuBe2
Socket Contact
Crimp Ferrule
QQ-C-576
Insulators, Standard Versions
Insulators, Standard Versions
Rubber Gaskets
L-P403/BS4271
Grade B
Delrin
Silicone Rubber
Nickel (Silver Optional)
ASTM-E1418PSI
MIL-G-45204
Plating
ELECTRICAL
Test †
Specification
Requirement
Impedance
Performance
-----
-----
50
0-18 GHz
1.30 Max.
75
0-1 GHz
Frequency Range
VSWR
MIL- C-39012
RF Insertion Loss
RF Leakage
0.2 dB Max. at 3 GHz
-60 dB Min. at 3 GHz
1500V rms
MIL- C-39012
MIL- C-39012
MIL-STD-202
Test Voltage (At Sea Level)
Working Voltage (At Sea
level)
500V rms
MIL-STD-202
MIL-STD-202
Insulation Resistance
5000 Megohms Min.
Contact Resistance
*Center Contact
*Outer Contact
MIL-C-39012
5mW Maximum
2mW Maximum
MECHANICAL & ENVIRONMENTAL
Test †
Specification
Requirement
Performance
Durability
500 Insertions & Extractions Min.
50 G
MIL-C-39012
MIL-STD-202
MIL-STD-202
MIL-C-39012
MIL-C-39012
Shock
Vibration
20 G from 80-2000 Hz
60 lbs. Minimum Pull Test
60 lbs. Maximum
Cable Retention (Cable Types)
Coupling Nut
Teflon: -55 to +199 C
Delrin: -40 to +85 C
Temperature Range
Moisture Resistance
--------
Continuous Test
MIL-STD-202