TNC Series

TNC connectors are based on MIL-C-39012 requirements.
They have the same inner interface design as the BNC. The only difference is the thread mating which ensures the working frequency is up to 11 GHz for 50 Ohm.
Due to the thread mating design, TNC's can withstand more vibration load than BNC's.

Plug interface

Jack interface

Click to see dimensions

Click to see dimensions

Body Brass, nickel plated
Center contact Brass (male)/BeCu or PhBz (female), gold plated
Insulator Teflon/PP/Delrin
Crimp ferrule Annealed copper, nickel plated
Gasket Silicone rubber
Impedance 50 Ohm
Frequency range 0 ~ 11 GHz
Working voltage 500V rms max
RG174, 188, 316 = 250V rms @sea level max
RG178 = 170V rms @sea level max
RG58 = 335V rms @sea level max
Insulation resistance 5000 MOhm min
Dielectric withstanding voltage 1500V rms min
RG174, 188, 316 = 750V rms min
RG178 = 500V rms min
RG58 = 1000V rms min
Contact resistance Center contact = 1.5 mOhm max
Outer contact = 1.0 mOhm max
VSWR 1.3 max
Insertion loss 0.2 x (f) GHz  dB max @3.0 GHz
Mating Screw type coupling mechanism
Coupling nut retention force 100 lbs min
Coupling proof torque 15.0 in/lbs min (for plug only)
Durability 500 matings
Cable retention force Non-crimp = 40 lbs min
RG174 = 12.1 lbs min
RG178 = 7.3 lbs min
RG58 = 28.7 lbs min
Corrosion (Sail spray) MIL-STD-202F, Method 101D, Condition B
Thermal shock MIL-STD-202F, Method 1017G, Condition B
Vibration MIL-STD-202F, Method 204D, Condition B
Mechanical shock MIL-STD-202F, Method 213B, Condition A

Alpha Center
351 Irving Drive, Oxnard, CA 93030, USA
2008 Alpha Products, Inc. All rights reserved.