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Amphenol 031-6821 — RF Cable Assemblies

031-6821 Amphenol RF TNC Plug, LMR-195, 50 Ohm, 6 GHz

MPN031-6821
Active

Amphenol RF TNC plug, male pin, 50 Ohm, LMR-195 cable, solder contact, crimp shield, 6 GHz, 500 mating cycles, -65°C~165°C, bulk.

$9.9900Ref. price · indicative, final on quote
Amphenol 031-6821 datasheet (PDF)
Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for stock & sourcing questions
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Jul 2026

Specifications

031-6821 key specifications
ParameterValue
MountingFree Hanging (In-Line)
Connector typePlug, Male Pin
Fastening typeThreaded
Frequency - max6 GHz
Cable groupLMR-195
Operating temperature-65°C~165°C
Body materialBrass
Housing colorSilver
Dielectric materialPolytetrafluoroethylene (PTFE)
Center contact materialBrass
PackageBulk
Includes2 pcs - 1 Connector, 1 Ferrule

All specifications

031-6821 additional specifications
ParameterValue
Impedance50Ohm
Body finishNickel
Mating cycles500
Number of ports1
Shield terminationCrimp
Contact terminationSolder
Center contact platingGold

Product details

TNC Plug for LMR-195 — 50 Ohm, 6 GHz

The 031-6821: The connector comes as two pieces — the plug body and a separate ferrule — and is terminated by soldering the centre contact and crimping the shield braid. The threaded coupling nut provides vibration-resistant mating, making this a field-reliable choice for outdoor antenna feeds, base station jumpers, and equipment interconnects where the connection must stay tight under mechanical stress.

Cable-Specific Tuning — Why LMR-195 Matters

This plug is dimensionally tuned for LMR-195 cable. Using a different cable shifts the impedance away from 50 Ohm and degrades VSWR above a few hundred MHz.

Termination Sequence — Solder Centre, Crimp Braid

The nickel-plated brass body and gold-plated brass centre contact give good corrosion resistance and support the rated 500 mating cycles.

Frequently asked questions

What cable group does the 031-6821 support?

The 031-6821 is designed for LMR-195 coaxial cable. The centre contact, dielectric support, and ferrule are sized for this specific cable's 0.195-inch outer diameter and foam dielectric. It is not compatible with LMR-400 or RG-58 without changing the connector.

Is the 031-6821 50 Ohm?

Yes, the 031-6821 is a 50 Ohm TNC plug. The 50 Ohm impedance is maintained through the PTFE dielectric support and the cable-specific centre contact geometry matched to LMR-195.