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Amphenol 31-5136-RFX — RF / Coaxial Connectors

Amphenol RF 31-5136-RFX BNC Plug, 4 GHz, 50 Ohm

MPN31-5136-RFX
Active

Amphenol RF Suretwist® BNC plug, male pin, 50 Ohm, 4 GHz, 500 V, bayonet lock, free-hanging, gold center contact, nickel body, for RG-59/62/140/210 cable, Bulk.

$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

31-5136-RFX key specifications
ParameterValue
SeriesSuretwist®
MountingFree Hanging (In-Line)
Connector typePlug, Male Pin
Fastening typeBayonet Lock
Voltage rating500 V
Frequency - max4 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

All specifications

31-5136-RFX additional specifications
ParameterValue
PackageBulk
Impedance50Ohm
Body finishNickel
Mating cycles500
Insertion loss0.2dB
Number of ports1
Shield terminationTwist On
Contact terminationPush On
Center contact platingGold

Product details

The Amphenol RF 31-5136-RFX is a BNC plug from the Suretwist® series, terminated with a push-on contact and a twist-on shield — the field-installable method that skips soldering the braid.

Cable Fit and Frequency Ceiling

This plug is listed for RG-59, RG-62, RG-140, RG-210, and Belden 8241, 8263, 8279, 9209. Insertion loss is 0.2 dB.

Construction and Plating

Brass body with nickel finish, brass center contact with gold plating, and a polyoxymethylene (POM) acetal dielectric. The gold-on-brass center contact handles the 500 V rating without corrosion creep in a humid or outdoor patch-panel environment. The twist-on shield termination bonds the cable braid to the shell in one motion — no ferrule to crimp, no solder pot to fill.

Frequently asked questions

Is 31-5136-RFX compatible with RG-59 cable?

Yes, the 31-5136-RFX is listed for RG-59, RG-59B, RG-62, RG-140, RG-210, and several Belden equivalents including 8241, 8263, 8279, and 9209.