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AMPHENOL RF 315556RFX BNC RF Connector

Amphenol's 31-5556-RFX BNC connector is a miniature, lightweight RF connector developed for quick and easy connection and disconnection. Featuring a bayonet coupling mechanism, it's ideal for terminating miniature to subminiature coaxial cables like RG-58, 59, RG-179, and RG-316. Available in various termination styles including crimp/crimp, clamp/solder, and SURETWIST, this connector is widely used in applications such as test instrumentation, medical equipment, and cable assemblies. It offers excellent electrical performance up to 11 GHz and is recognized under Underwriter’s Laboratories’ Component program for safety.

Authorized Distributors
Source:DigiKey
Part No:31-5556-RFX
Stock:0
Inv Date:05-28-2026
Price: Unit price: $4.92
Buy/RFQ:
Part No:31-5556-RFX
Stock:0
Inv Date:05-28-2026
Price: Unit price: $4.02
Buy/RFQ:
Part No:31-5556-RFX
Stock:0
Inv Date:05-28-2026
Price: Unit price: $4.02
Buy/RFQ:

AMPHENOL RF 315556RFX BNC RF Connector Specifications:

  • Impedance: 50 Ω nominal
  • Frequency Range: DC - 4 GHz (usable to 11 GHz)
  • VSWR: 1.3 max. @ DC - 4 GHz (straight)
  • RF Leakage: 55 dB minimum @ 3 GHz
  • Voltage Rating: ≥ 500 V peak
  • Contact Resistance: {'Center Contact': '≤ 1.5 mΩ', 'Outer Contact': '≤ 0.2 mΩ', 'Braid to Body': '≤ 0.1 mΩ'}
  • Insulation Resistance: 5,000 MΩ minimum
  • Insertion Loss: maximum 0.2 dB max. @ 3 GHz
  • Dielectric Withstanding Voltage: 1,500 Vrms
  • Mating: 2-stud bayonet lock coupling
  • Coupling Torque: 0.6 / 2.5 in-lbs
  • Coupling Nut Retention Force: 101 lbs
  • Center Contact Retention Force: ≥ 6.1 lbs
  • Temperature Range: -65°C to +165°C
  • Material (Body): Brass, nickel plated
  • Material (Male Contact): Brass, gold plated
  • Material (Female Contact): Beryllium copper or phosphor bronze, gold or silver plated

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Frequently Asked Questions

Where can I buy AMPHENOL RF 315556RFX?

You can click on the BUY or RFQ button to purchase 315556RFX from an authorized AMPHENOL RF distributor.

How do I troubleshoot issues or seek technical support for part 315556RFX?

You can download the 315556RFX datasheet or visit the AMPHENOL RF website for support.

Who is the manufacturer of 315556RFX?

AMPHENOL RF

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