RF TNC connectors utilize a 7/16"-28 threaded coupling mechanism to prevent physical disconnects under high vibration and mechanical stress. Securing this interface requires a mating torque of 4 to 6 in-lbs (0.51 - 0.67 N-m). This stable connection satisfies MIL-STD-202 (Method 213, Condition G), ensuring zero electrical discontinuity during mechanical shock. Additionally, the interface dimensions strictly comply with the MIL-STD-348 specification.

To optimize conductivity, TNC RF connectors feature gold or silver-plated contacts. This maintains a maximum center contact resistance of 1.5 mΩ and an outer resistance of 0.2 mΩ. The robust assembly supports power handling up to 316 W at 1 GHz (25 °C). Furthermore, standard straight designs exhibit a maximum insertion loss of just 0.18 dB at 9 GHz.

RF TNC connector specifications

Access the complete technical parameters of the TNC connector series across the four tables below.

TNC coax connector electrical specifications

Parameter	Specification
Impedance	50 Ohm / 75 Ohm
Frequency Range	DC - 11 GHz (Standard) / DC - 18 GHz (Extended)
Voltage Rating	500 Volts Peak
Dielectric Withstanding Voltage	1500 VRMS Max
VSWR (Return Loss)	1.3 (-18 dB) Max (DC - 11 GHz)
Insulation Resistance	5000 MΩ Min
Center Contact Resistance	1.5 mΩ Max
Outer Contact Resistance	0.2 mΩ Max
RF Leakage	-60 dB Max @ 3 GHz
Insertion Loss (Straight)	0.18 dB Max @ 9 GHz
Insertion Loss (Right Angle)	0.21 dB Max @ 9 GHz
Power Handling	316 W @ 1 GHz @ 25 °C

TNC RF connector mechanical specifications

Parameter	Specification
Coupling Mechanism	7/16"-28 Threaded
Mating Cycles	500 Min
Interface Specification	MIL-STD-348
Mating Torque	4 - 6 inch-pounds (0.51 - 0.67 N-m)
Polarity Formats	Standard / Reverse Polarity
Mounting Styles	Bulkhead / Panel Mount
Cable Terminations	Crimp / Clamp
Supported Coaxial Cables	RG-58, RG-142, RG-316

TNC coaxial connector material specifications

Parameter	Specification
Contact Plating	Gold / Silver
Body Material	Brass / Zinc Diecast
Body Plating	Nickel / Silver / Tin / Gold / White Bronze
Insulator Material	PTFE / Delrin / Nylon / Polypropylene

Coax TNC connector environmental specs & compliance

Parameter	Specification
Temperature Range	-65 °C to +165 °C
Thermal Shock	MIL-STD-202, Method 107 (Condition B)
Corrosion	MIL-STD-202, Method 101 (Condition B) - 5% Salt
Vibration	MIL-STD-202, Method 204 (Condition B)
Mechanical Shock	MIL-STD-202, Method 213 (Condition G)
Moisture Resistance	MIL-STD-202, Method 106
Altitude	MIL-STD-202, Method 105 (Condition C)
Environmental Sealing	IP67 sealed versions available

RF TNC Connector FAQs

What is the maximum operational frequency and return loss for standard TNC coax connectors? ↓

Standard TNC configurations operate from DC to 11 GHz. They maintain a maximum VSWR of 1.3 (-18 dB). Extended range designs operate up to 18 GHz.

What specific mating torque is required to ensure vibration resistance? ↓

Operators must torque the coupling mechanism to 4 - 6 inch-pounds (0.51 - 0.67 N-m). This prevents signal discontinuity during mechanical shock events.

Are TNC RF connectors validated for outdoor installations? ↓

Yes. IP67 sealed versions are available to prevent moisture ingress. Standard units undergo MIL-STD-202, Method 101, Condition B corrosion testing (5% salt solution).

How does connector orientation impact insertion loss, and what is the expected RF leakage? ↓

Straight M39012 TNC configurations exhibit a maximum insertion loss of 0.18 dB at 9 GHz. Right-angle versions increase this metric to 0.21 dB at 9 GHz. The interface limits RF leakage to -60 dB maximum at 3 GHz.

What are the absolute maximum power handling and voltage limitations for this series? ↓

Standard RF TNC connectors support power handling up to 316 W at 1 GHz (at 25 °C). The operational voltage rating is 500 Volts Peak, with a Dielectric Withstanding Voltage of 1500 VRMS maximum.

RF TNC Connector

Target Applications & Industries

Wireless infrastructure base stations

Test and measurement equipment

IoT and Wi-Fi antennas

Industrial control systems

Broadband and broadcast systems

TNC coax connectors technical overview