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Amphenol 31-71008-RFX — RF / Coaxial Connectors

Amphenol RF 31-71008-RFX BNC Plug, 75 Ohm, Crimp, RG-59

MPN31-71008-RFX
NRND

Amphenol RF BNC plug, 75 Ohm, crimp termination, RG-59/62/140/210, 2 GHz, 500 mating cycles, 0.2 dB insertion loss, silver brass body, gold center contact.

$3.8582Ref. price · indicative, final on quote
Amphenol 31-71008-RFX 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 supplier — new & surplus connector stock· Listing updated Jul 2026

Specifications

31-71008-RFX key specifications
ParameterValue
MountingFree Hanging (In-Line)
Connector typePlug, Male Pin
Fastening typeBayonet Lock
Voltage rating500 V
Frequency - max2 GHz
Cable groupRG-59, 59B, 62, 140, 210, Belden 8241, 8263, 8279, 9209
Operating temperature-65°C~165°C
Body materialBrass
Housing colorSilver
Dielectric materialPolyoxymethylene (POM) Acetal
Center contact materialBrass
PackageBulk

All specifications

31-71008-RFX additional specifications
ParameterValue
Includes4 pcs - 1 Connector, 1 Bushing, 1 Contact, 1 Ferrule
Impedance75Ohm
Body finishNickel
Mating cycles500
Insertion loss0.2dB
Number of ports1
Shield terminationCrimp
Contact terminationCrimp
Center contact platingGold

Product details

This plug accepts the common 75 Ohm video coax types — RG-59, RG-62, RG-140, RG-210, plus the Belden equivalents 8241, 8263, 8279, and 9209. The dielectric is polyoxymethylene (POM) acetal, chosen for its stable electrical properties through that range.

The 500-cycle mating life comes from the gold-plated brass center contact wiping against the receptacle's beryllium copper — the gold flash resists oxidation through repeated connects in field-service rotation. Voltage rating is 500 V, which covers the working voltage of most 75 Ohm video distribution systems.

It is still available for existing BOM positions, but new projects should look at the current-production Amphenol RF BNC 75 Ohm offering.

Frequently asked questions

Where can I buy 31-71008-RFX?

31-71008-RFX is sourced to order through independent distribution. Submit an RFQ for current availability and pricing — confirmed at quote time.

Is 31-71008-RFX obsolete or NRND?

31-71008-RFX carries an NRND (Not Recommended for New Designs) status. It remains available for existing production but is not intended for new design-ins.

What cable groups does 31-71008-RFX work with?

31-71008-RFX accepts RG-59, RG-59B, RG-62, RG-140, RG-210, and Belden 8241, 8263, 8279, and 9209 coaxial cables.