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Amphenol 31-2-RFX — RF Cable Assemblies

Amphenol RF 31-2-RFX BNC Plug, 50 Ohm, 4 GHz

MPN31-2-RFX
Active

Amphenol RF BNC plug, 31-2-RFX, male pin, 50 Ohm, 4 GHz, 500 V, solder termination, clamp shield, for RG-58 cable groups, includes all assembly hardware.

$4.4700Ref. 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

31-2-RFX key specifications
ParameterValue
MountingFree Hanging (In-Line)
Connector typePlug, Male Pin
Fastening typeBayonet Lock
Voltage rating500 V
Frequency - max4 GHz
Cable groupRG-58, 58A, 58B, 58C, 141, 303, LMR-195, Belden B7806A, 9907
Operating temperature-65°C~165°C
Body materialBrass
Housing colorSilver
Dielectric materialPolyoxymethylene (POM) Acetal
Center contact materialBrass
PackageBulk

All specifications

31-2-RFX additional specifications
ParameterValue
Includes6 pcs - 1 Connector, 1 Braid Clamp, 1 Clamp, 1Contact, 1 Gasket, 1 Washer
Impedance50Ohm
Body finishNickel
Mating cycles500
Insertion loss0.2dB
Number of ports1
Shield terminationClamp
Contact terminationSolder
Center contact platingGold

Product details

BNC Plug for RG-58 Cable, 50 Ohm, 4 GHz

The 31-2-RFX: The contact is soldered, and the braid is secured with a clamp — a straightforward assembly for a bench or field kit.

The 4 GHz bandwidth covers most common RF bands up to low microwave — think two-way radio, instrumentation, and test equipment. The 500-cycle mating life is solid for a BNC; the bayonet lock wears the plating over time, but at 500 mates you get years of field service before the connection gets sloppy.

Frequently asked questions

What cable groups are compatible with 31-2-RFX?

The 31-2-RFX is compatible with RG-58, 58A, 58B, 58C, 141, 303, LMR-195, Belden B7806A, and 9907 cables.