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Amphenol 031-218-75RFX — RF / Coaxial Connectors

Amphenol RF 031-218-75RFX BNC to BNC Adapter, 75 Ohm

MPN031-218-75RFX
Active

Amphenol RF BNC to BNC adapter, 031-218-75RFX, straight, plug to plug, male to male, 75 Ohm, 4 GHz, nickel body, gold center contact, free hanging.

$8.4400Ref. 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 supplier — new & surplus connector stock· Listing updated Jul 2026

Specifications

031-218-75RFX key specifications
ParameterValue
Adapter typePlug to Plug
MountingFree Hanging (In-Line)
Adapter seriesBNC to BNC
Fastening typeBayonet Lock, Bayonet Lock
Conversion typeSame Series
Frequency - max4 GHz
Operating temperature-40°C~85°C
Body materialBrass
Dielectric materialPolyoxymethylene (POM) Acetal
Center contact materialBeryllium Copper
StyleStraight
PackageBulk

All specifications

031-218-75RFX additional specifications
ParameterValue
Impedance75Ohm
Body finishNickel
Center genderMale to Male
Mating cycles500
Center contact platingGold
Convert to (Adapter end)BNC Plug, Male Pin
Convert from (Adapter end)BNC Plug, Male Pin

Product details

75 Ohm BNC Plug-to-Plug Adapter for Video and Telecom Runs

The Amphenol RF 031-218-75RFX is a straight BNC to BNC adapter configured as plug to plug with male center contacts on both ends. Its 75 Ohm impedance targets video distribution, broadcast, and telecom infrastructure where 75 Ohm cabling is standard, rather than the 50 Ohm world of general-purpose RF test gear. The dielectric is polyoxymethylene (POM) acetal. Maximum operating frequency is 4 GHz, which covers SDI video, baseband telecom, and most CCTV signals.

Frequently asked questions

Where can I buy Amphenol 031-218-75RFX?

Submit a request for current availability and pricing; no stock-holding or lead-time figure is carried on this listing.

What is the impedance of Amphenol 031-218-75RFX?

75 Ohm.

Is 031-218-75RFX male or female?

Male to male — both adapter ends are BNC plugs with male center pins.

Can I use a 75 ohm BNC adapter with 50 ohm cable?

Using a 75 Ohm adapter in a 50 Ohm system will create an impedance mismatch, causing signal reflections and increased VSWR. For best signal integrity, match the adapter impedance to the cable and system impedance.