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RF Connectors / Coaxial Connectors BNC Straight Crimp Plug for RG-58, 50 Ohm

China-sourced compatible alternative — fit confirmed by drawing/spec review.

Part number (MPN)

031-5557-RFX

Impedance

50 Ohms

Frequency

4 GHz

Need a custom version from drawing?

We coordinate supplier-qualified RF connector and cable assembly sourcing from drawings, samples, or BOM. Typical production lead time is 3–6 weeks after drawing/spec review; feasibility, MOQ, and fit are confirmed by RFQ.

Custom RF cable from drawing →
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Lead time: 3–6 wks | MOQ: 200+ pcs
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Specifications

Specifications for 031-5557-RFX
InterfaceRF Connectors / Coaxial Connectors
Interface-
InterfaceRG-58, RG-58C, RG-141, Belden 7806A, Belden 89907
InterfaceBNC
Impedance50 Ohms
Frequency (max)-
Frequency (max)4 GHz
GenderPlug
OrientationStraight
TerminationCable - Crimp
TerminationPress Fit
Body MaterialBrass
Show 16 more specs
TerminationBrass
TerminationGold
Body FinishNickel
Part # Aliases31-5557-RFX B1111K1-ND3G-58U-50
Coupling mechanismBayonet
ProductConnectors
Product CategoryRF Connectors / Coaxial Connectors
Unit Weight0.363322 oz
Maximum Operating Temperature+ 165 C
Voltage Rating500 V
IsolationNon-Isolated
Mating Cycles500
RoHSN
SubcategoryRF Interconnects
PackagingBulk
Minimum Operating Temperature- 65 C

Description

Current reference data for 031-5557-RFX: 50 Ohms · 4 GHz · Straight. The catalog currently lists the configuration as: Straight · Cable - Crimp. Impedance is listed as 50 Ohms. If that parameter is critical, confirm it again in RFQ. Frequency is listed as 4 GHz. The real operating limit still depends on the assembly, mating pair, and application context. If mounting is missing here, confirm it from the drawing or mating requirement. Material is listed as Brass. That is useful for review, but it does not replace full project stack-up confirmation. Use this page to shortlist before RFQ, not as the final sign-off.

Use this page to shortlist before RFQ. MOQ 200+ custom production and supply path are confirmed after drawing/spec/BOM review; no spot stock is assumed.

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Disclaimer

Manufacturer names, trademarks, symbols, and part numbers are used for identification and cross-reference only. Cstone Technology operates its own factory for RF/coaxial connectors, adapters, and cable assemblies and is not a trading company or affiliated with the original brands. Trademarks remain the property of their respective owners. Final suitability is confirmed by drawing/spec review during RFQ.