RF connectors

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RF accessories

Were you in need of custom TNC RF cable assemblies?

Lighthorse Technologies manufactures custom TNC RF cable assemblies in-house at our headquarters in San Diego, CA. Using cutting edge termination equipment we are able to provide quick turn solutions as well as complete testing capabilities. Visit our RF cable assembly wizard or call 1-800-443-3446 to get started!

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TNC RF connectors are basically BNC connectors with threaded coupling and improved electrical performance at higher frequencies. TNC 50 ohm connectors provide repeatable electronic performance from DC to 11 GHz. TNC 75 ohm connectors are suitable for applications up to 1 GHz. All 50 and 75 ohm connectors are intermatable. TNC connectors are designed to accomodate cables from .150" to .250 OD. The TNC type connector is a weatherproof unit and with its threaded coupling ensures low noise and withstands shock and vibration. LTI TNC connectors are designed to conform to MIL-C-39012 specifications. Typical TNC series coaxial connector applications include airframe, missile, radar, cellular mobile phones, and precision electronic equipment industries.


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TNC Connector Specifications

TNC Plug

TNC Jack
TNC connector specifications TNC connector specifications
Letter Minimum Maximum
A 11.18 -
B - 8.08
C 4.83 -
D 5.33 5.84
E 5.28 5.79
F 0.15 0.46
G 0.08 1.02
H 2.06 2.21
I 1.98 -
J - 0.64
K 1.32 1.37
- - -
- - -
- - -
- - -
- - -
- - -
- - -
Letter Minimum Maximum
A 10.97 11.07
B 9.60 9.70
C 8.79 9.04
D 8.31 8.46
E 8.10 8.15
F - 6.50
G - 4.72
H 10.52 -
I 4.78 5.28
J 4.72 5.23
K 0.38 0.76
L 1.91 2.06
M - 0.15
N 1.73 2.24
O 4.75 -
P 8.31 8.51
Q 4.95 -
R 2.06 2.21

TNC Electrical Ratings

Impedance 50 ohm 75 ohm
Frequency Range DC-11 GHz DC-1 GHz
VSWR 1.3 max  
Voltage Rating (in VRMS at sea level) 500 max  
Dielectric Withstanding Voltage (in VRMS at sea level) 1500 min  
Insertion Loss 0.2 dB max @ 3.0 GHz  
Insulation Resistance 5000 M min  
Contact Resistance Center Contact Outer Contact
2.0 m max 1.0 m max

TNC Mechanical Ratings

Mating 7/16" threaded coupling  
Durability 500 matings max  
Coupling Nut Torque 4/1 to 6.1 in-lbs  
Coupling Nut Retention Force 101.2 lbs max  
Contact Captivation 6.1 lbs max  
Cable Retention Semi-Rigid and Clamp Type 20 lbs min
  RG-178,196 7.3 lbs min
  RG-174,188,316 12.1 lbs min
  RG-58,59 28.7 lbs min

TNC Environmental Ratings

Temperature Range -65C to +165C  
Thermal Shock MIL-STD-202F, Method 1017G, Condition A  
Vibration MIL-STD-202F, Method 204D, Condition A  
Corrosion MIL-STD-202F, Method 101D, Condition B  
Mechanical Shock MIL-STD-202F, Method 213B, Condition A  

Materials

    Material Plating
Connector Body   Brass per QQ-B-626 Nickel
Center Contact Male Brass per QQ-B-626 Gold
  Female Beryllium Copper per QQ-C-530 Gold
Insulator   Teflon, Delrin, Polypropylene None
Gasket   Silicone Rubber None
Crimp Ferrule   Annealed Copper per WW-T-799 Same as body