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Amphenol 031-70553-12G — RF / Coaxial Connectors

Amphenol RF 031-70553-12G BNC Jack, 75 Ohm, 12 GHz, Crimp

MPN031-70553-12G
Active

Amphenol RF BNC jack, female socket, 75 Ohm, 12 GHz, crimp termination for Canare L-5.5CUHD, nickel body, gold center contact, bayonet lock, 500 mating cycles.

$12.3100Ref. price · indicative, final on quote
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

031-70553-12G key specifications
ParameterValue
MountingFree Hanging (In-Line)
Connector typeJack, Female Socket
Fastening typeBayonet Lock
Frequency - max12 GHz
Cable groupCanare L-5.5CUHD
Operating temperature-65°C~165°C
Body materialBrass
Housing colorSilver
Dielectric materialPolytetrafluoroethylene (PTFE)
Center contact materialPhosphor Bronze
PackageBulk
Includes3 pcs - 1 Connector, 1 Contact, 1 Ferrule

All specifications

031-70553-12G additional specifications
ParameterValue
Impedance75Ohm
Body finishNickel
Mating cycles500
Number of ports1
Shield terminationCrimp
Contact terminationCrimp
Center contact platingGold

Product details

The 031-70553-12G: This impedance is key—standard BNC connectors are 50 Ohm, and using the wrong one will create a mismatch that degrades signal quality, especially at higher frequencies.

12 GHz Bandwidth and 75 Ohm Impedance

Rated to 12 GHz, this jack supports high-definition video and data links well beyond the typical BNC cutoff. The 75 Ohm impedance matches broadcast video, CCTV, and HD-SDI infrastructure—not the 50 Ohm world of RF test equipment.

Cable-Specific Termination Kit

The bulk package includes three pieces: the connector body, a center contact, and a ferrule. The center contact is crimped onto the center conductor of Canare L-5.5CUHD, and the ferrule crimps over the braid. This is not a universal BNC—using a different cable changes the impedance and the crimp dimensions, so stick with the specified cable group for a proper 75 Ohm match.

Frequently asked questions

Where can I buy 031-70553-12G?

Submit a request for current availability and pricing.

What cable does 031-70553-12G fit?

This BNC jack is designed for Canare L-5.5CUHD cable. Using any other cable will change the impedance and crimp dimensions, compromising the 75 Ohm match.

Is the 031-70553-12G compatible with RG59?

No. The 031-70553-12G is specified for Canare L-5.5CUHD cable only. RG59 has a different dielectric diameter and impedance characteristic; using it will not produce a proper 75 Ohm termination.