Developed in the late 1950's, the TNC stands for Threaded Neill Concelman and is named after Amphenol engineer Carl Concelman. Designed as a threaded version of the BNC, the TNC series features screw threads for mating. TNC are miniature, threaded weatherproof units with a constant 50 Ω impedance and they operate from 0 - 11 GHz.

There are two types of TNC connectors: Standard and Reverse Polarity. Reverse polarity is a keying system accomplished with a reverse interface, and ensures that reverse polarity interface connectors do not mate with standard interface connectors. Amphenol accomplishes this by inserting female contacts into plugs and male contacts into jacks. Other manufacturers may use reverse threading to accomplish reverse polarity keying.

Standard TNC Catalog Pages
Reverse Polarity TNC Catalog Pages	All TNC Products

	Threaded coupling interface ensures connector will not de-couple in vibration-intensive applications
	Many TNCs are recognized under the component program of Underwriter's Laboratories and have undergone stringent testing from an independent laboratory
	Performance from 0 - 11 GHz operations in many applications

	Antennas		Base Stations		Cable Assembly
	Cellular		Components		Instrumentation
	Mil-Aero		Networks		Radar
	Telecom

Electrical
Impedance	50 Ω
Frequency Range	0 - 11 GHz
Voltage Rating	500 volts peak
Dielectric Withstanding Voltage	1,500 volts rms
VSWR	M39012 straight connectors: 1.3 max @ 0 - 11 GHzM39012 right angle connectors: 1.35 max @ 0 - 11 GHz
Contact Resistance	Center: contact 1.5 mΩOuter contact: 0.2 mΩ
Braid to Body	0.1 mΩ
RF Leakage	-60 dB minimum @ 3 GHz
Insertion Loss	0.18 dB @ 9 GHz
Insulation Resistance	= 5,000 MΩ
Mechanical
Mating	7/16 threaded coupling
Braid/Jacket Cable Affixment	Crimps: hex braid crimp Clamps: screw-thread nut and braid clamp
Center Conductor Cable Affixment	Crimps: crimp or solder All others: solder only
Captivated Contact	All crimps unless specified otherwise
Cable Retention	Crimps: 20 - 100 lbs Clamps: 20 - 50 lbs
Material
Male Center Contacts	Brass, silver or gold plated
Female Center Contact	Beryllium copper or phosphorous bronze, silver or gold plated
Other Metal Parts	Brass with nickel finish (except for M39012 which are silver)
Insulators	TFE, Delrin
Clamp Gaskets	Synthetic rubber, silicone rubber
Crimp Ferrule	Copper
Environmental
Temperature Range	-65°C to +165°C
Weatherproof	Clamps with clamp gaskets, Crimps with heat-shrink tubing
Hermetic Seals	Pass helium leak test of 2x10-8 cc/sec
Shock	MIL-STD-202, method 202
Vibration	MIL-STD-202, method 204, test condition D
Moisture Resistance	MIL-STD-202, method 106
Corrosion	MIL-STD-202, method 101, test condition B
Temperature Cycling	MIL-STD-202, method 102, test condition D
Altitude	MIL-STD-202, method 105, test condition C

Note: These characteristics are typical but may not apply to all connectors.

Electrical
Impedance	50Ω
Frequency Range	0 - 4 GHz
Voltage Rating	500 volts peak
Dielectric Withstanding Voltage	1,500 volts rms
VSWR	M39012 straight connectors: 1.3 max @ 0 - 4 GHzM39012 right angle connectors: 1.35 max @ 0 - 4 GHz
Insertion Loss	0.18 dB @ 9 GHz
Insulation Resistance	= 5,000 MΩ
Mechanical
Mating	437-28 threaded coupling
Braid/Jacket Cable Affixment	Hex crimp
Center Conductor Cable Affixment	Hex crimp or solder
Captivated Contact	Except as noted
Cable Retention	20 - 100 lbs depending on cable
Material
Male Center Contacts	Brass, gold plated
Female Center Contact	Beryllium copper or phosphorous bronze, gold plated
Other Metal Parts	Brass with bright nickel finish
Insulators	TFE
Weatherproof Gaskets	Silicone rubber
Environmental
Temperature Range	-65°C to +165°C
Weatherproof	When mated with other Amphenol RP-TNC connectors
Corrosion	MIL-STD-202, method 101, test condition B

Note: These characteristics are typical but may not apply to all connectors.