INDUSTRY COMPONENT

BNC Connector

BNC connector is a quick-connect/disconnect coaxial RF connector used for signal transmission in electronic equipment.

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Component Specifications

Definition
The BNC (Bayonet Neill–Concelman) connector is a miniature quick-connect/disconnect radio frequency connector used for coaxial cable in RF applications up to 4 GHz. It features a bayonet coupling mechanism for secure mating and is commonly used in test equipment, video systems, and data communication networks.
Working Principle
The BNC connector operates by providing a shielded coaxial connection that maintains impedance matching (typically 50Ω or 75Ω) to minimize signal reflection and loss. The bayonet locking mechanism ensures secure mechanical connection while maintaining electrical continuity through center pin and outer shell contact.
Materials
Body: Brass or stainless steel with nickel or gold plating; Dielectric: PTFE (Teflon) or polyethylene; Center contact: Beryllium copper or phosphor bronze with gold plating; Insulator: Thermoplastic or ceramic.
Technical Parameters
  • VSWR <1.3:1 at 3 GHz
  • Impedance 50Ω or 75Ω
  • Insertion Loss <0.3 dB at 3 GHz
  • Voltage Rating 500V RMS
  • Frequency Range 0-4 GHz
  • Temperature Range -55°C to +85°C
Standards
IEC 61169-8, MIL-PRF-39012, DIN 47223

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for BNC Connector.

BNC connector coaxial connector RF connector bayonet connector test equipment connector video connector impedance matching quick-connect connector BNC Connector in Computer, Electronic and Optical Product Manufacturing

Parent Products

This component is used in the following industrial products

Probes

Electrical interface connecting the oscilloscope to the circuit under test.

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Engineering Analysis

Risks & Mitigation
  • Impedance mismatch causing signal reflection
  • Improper installation leading to signal loss
  • Corrosion in harsh environments
  • Mechanical wear from frequent mating cycles
FMEA Triads
Trigger: Improper crimping during installation
Failure: Intermittent signal loss or complete connection failure
Mitigation: Use calibrated crimping tools, follow manufacturer installation procedures, implement visual inspection standards
Trigger: Corrosion of contacts in humid environments
Failure: Increased contact resistance and signal degradation
Mitigation: Specify gold-plated contacts for critical applications, use environmental seals, implement regular maintenance schedules

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±0.05mm for critical dimensions, impedance tolerance ±2Ω
Test Method
VSWR measurement per IEC 61169-8, insertion loss testing, mechanical durability testing (500 mating cycles)

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What is the difference between 50Ω and 75Ω BNC connectors?

50Ω BNC connectors are optimized for RF and data transmission applications where power transfer is critical, while 75Ω connectors are designed for video and broadcast applications where signal quality is prioritized. They are not interchangeable due to impedance mismatch.

How do I properly install a BNC connector on coaxial cable?

Strip the cable to expose center conductor and shield, insert dielectric into connector body, solder center conductor to pin, fold back braided shield, and secure with crimp sleeve using proper tooling to maintain impedance continuity.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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