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AMPHENOL RF 31220N BNC Connector

Amphenol's 31-220N BNC connector is a miniature, lightweight RF connector developed in the late 1940s. It utilizes a bayonet coupling mechanism for quick and easy mating and unmating, making it ideal for applications requiring frequent connections and disconnections. Suitable for a wide range of RG and industry-standard cables, these connectors are available in crimp/crimp, clamp/solder, and other termination styles. They find use in medical equipment, test instrumentation, antennas, base stations, telecom, broadcast, and cable assemblies.

Authorized Distributors
Source:DigiKey
Part No:31-220N
Stock:272
Inv Date:05-28-2026
Price: Unit price: $15.83
Buy/RFQ:
Part No:31-220N
Stock:777
Inv Date:05-28-2026
Price: Unit price: $13.65
Buy/RFQ:
Part No:31-220N
Stock:777
Inv Date:05-28-2026
Price: Unit price: $13.65
Buy/RFQ:

AMPHENOL RF 31220N BNC 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)
  • Temperature Range: -65°C to +165°C
  • Material: {'Body and Outer Contacts': 'Brass, nickel plated', 'Male Contact': 'Brass, gold plated', 'Female Contact': 'Beryllium copper or phosphor bronze, gold or silver plated'}

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Frequently Asked Questions

Where can I buy AMPHENOL RF 31220N?

You can click on the BUY or RFQ button to purchase 31220N from an authorized AMPHENOL RF distributor.

How do I troubleshoot issues or seek technical support for part 31220N?

You can download the 31220N datasheet or visit the AMPHENOL RF website for support.

Who is the manufacturer of 31220N?

AMPHENOL RF

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