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Amphenol 031-70257 — RF / Coaxial Connectors

Amphenol RF 031-70257 BNC Plug, 75 Ohm, Belden 1694

MPN031-70257
Active

Amphenol RF, Mini BNC, Plug, Male Pin, 75Ohm, Crimp, Free Hanging, Bayonet Lock, 500 Mating Cycles, Gold Center Contact, Bulk

$12.7800Ref. 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 Aug 2026

Specifications

031-70257 specifications
ParameterValue
MountingFree Hanging (In-Line)
Connector typePlug, Male Pin
Fastening typeBayonet Lock
Cable groupBelden 1694, 1694A, 9248
Body materialBrass
Housing colorSilver
Dielectric materialPolytetrafluoroethylene (PTFE)
Center contact materialBrass
PackageBulk
Includes3 pcs - 1 Connector, 1 Contact, 1 Ferrule
Impedance75Ohm
Body finishNickel
Mating cycles500
Insertion loss0.1dB
Number of ports1
Shield terminationCrimp
Contact terminationCrimp
Center contact platingGold

Product details

75 Ohm Mini BNC for Broadcast and CCTV Coax

The Amphenol RF 031-70257 is a 75 Ohm mini BNC plug, male pin, built for video-signal coax like Belden 1694, 1694A, and 9248. It ships as a 3-piece kit — the connector body, the center contact, and the crimp ferrule — so one line item covers the whole termination. The 75 Ohm impedance marks this as a video-grade BNC, not the 50 Ohm RF standard; use it on SDI, composite video, or broadcast reference runs where the impedance match keeps return loss in check.

Cable Prep and Crimp Fit

Shield and contact are both crimp-terminated. The ferrule crimps over the braid; the center contact crimps onto the center conductor.

Frequently asked questions

What is the impedance of 031-70257?

Impedance mismatch can cause signal reflection and loss in 75 Ohm video systems.

What cable is compatible with 031-70257?

Crimp ferrule and pin are sized for specific cables – wrong cable leads to poor connection.

Where can I buy 031-70257?

Buyers need to know authorized distributors to ensure genuine product and competitive pricing.

Is 031-70257 RoHS compliant?

RoHS compliance is mandatory for many industries; absence can halt procurement.

What is the package quantity of 031-70257?

The part comes as a kit with 3 pieces – ordering single units may not suffice for BOM needs.

Is 031-70257 an active product?

Active status ensures availability and manufacturer support; obsolete parts require alternate sourcing.