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AMPHENOL RF 31242RFX BNC RF Connector

Amphenol's 31-242-RFX BNC connector is a miniature, lightweight RF connector developed for quick and easy connection and disconnection. It utilizes a bayonet coupling mechanism, ensuring secure mating with a quarter-turn of the coupling nut. Designed for use with a wide range of coaxial cables, including RG-58, RG-59, RG-179, and RG-316, this connector is commonly found in applications such as test instrumentation, medical equipment, and cable assemblies. Amphenol offers both 50Ω and 75Ω BNC connectors to meet diverse impedance matching requirements. Commercial grade connectors are designated with the “RFX” suffix, providing a cost-effective solution for various applications.

Authorized Distributors
Part No:31-242-RFX
Stock:1206
Inv Date:05-28-2026
Price: Unit price: $3.25
Buy/RFQ:
Part No:31-242-RFX
Stock:1206
Inv Date:05-28-2026
Price: Unit price: $3.25
Buy/RFQ:

AMPHENOL RF 31242RFX 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 (depending on cable)
  • 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 (at sea level)
  • Mating: 2-stud bayonet lock coupling (MIL-STD-348)
  • Coupling Torque: 0.6 / 2.5 in-lbs (7 / 28 N-cm)
  • Coupling Nut Retention Force: 101 lbs (450N) min.
  • Center Contact Retention Force: ≥ 6.1 lbs (27N)
  • Material: {'Body and Outer Contacts': 'Brass, nickel plated', 'Male Contact': 'Brass, gold plated', 'Female Contact': 'Beryllium copper or phosphor bronze, gold or silver plated', 'Crimp Ferrule': 'Copper or brass, nickel plated', 'Insulator': 'PTFE, copolymer of styrene'}

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Frequently Asked Questions

Where can I buy AMPHENOL RF 31242RFX?

You can click on the BUY or RFQ button to purchase 31242RFX from an authorized AMPHENOL RF distributor.

How do I troubleshoot issues or seek technical support for part 31242RFX?

You can download the 31242RFX datasheet or visit the AMPHENOL RF website for support.

Who is the manufacturer of 31242RFX?

AMPHENOL RF

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