FIELD GUIDESource-led reference
Port & Cable

P319 / Coax / Cable / adapter

BNC coax cable assembly class

BNC cable assemblies exist in multiple impedance, cable, configuration and length variants.

Also called BNC cable BNC coax assembly

A BNC bayonet at each end does not establish the assembly impedance, cable type or application bandwidth.

The useful distinction

Inspect the assembly part number and cable marking; match system impedance and signal requirements before treating two BNC-ended cables as equivalent.

Claim inspection dates: 2026-10-07 · Independent review pending

Cable / adapter note · not an individual product specification

The useful distinction

Understand the requirement.

BNC cable assemblies exist in multiple impedance, cable, configuration and length variants. [C319A]

Bounded facts, visible unknowns

Specifications and limits

BNC coax cable assembly class facts and limitations
Impedance50-ohm and 75-ohm variants exist [C319A]
Capability boundaryPerformance remains assembly-specific [C319A]
Verified device listNot included. Check exact device and accessory documentation.
A boundary, not an omission to guess around.

This source-scoped reference does not approve a purchase, installation, live connection, wiring scheme or compatibility outcome. Resolve exact devices, cable markings and required operating mode separately.

Before you connect

What to check

  1. Confirm exact BNC interface variant.
  2. Confirm impedance from the assembly documentation.
  3. Check cable type, length and application requirements separately.
Trace a supported connection class →

Your next step

Move from the form to the requirement.

Compare this field note See the differences without assuming interchangeability.Work through a connection Choose your task before deciding on a cable.Explore this evidence trail Inspect the claims and their dependencies. (private workspace)

The source trail

Evidence for this page

AI-assisted inspection is not independent engineering review. Source scope and access limitations are disclosed below. Procedural checklists are editorial requirements, not hardware measurements.

C319ASource checked · pending review

Amphenol RF's BNC cable-assembly portfolio includes both 50-ohm and 75-ohm assemblies and multiple cable/configuration/length choices; BNC shape alone therefore does not determine impedance or application performance.

Amphenol RF · BNC Cable Assemblies ↗

Locator: Manufacturer family overview: BNC assemblies in 50-ohm and 75-ohm variants, multiple cable types, configurations and lengths
Access: public page. A BNC connector shape alone does not establish impedance, cable type, SDI class, loss, length limit or system compatibility.

S379: full source recordInspect review dependencies → (private workspace)

Claim scope: BNC cable-assembly family diversity only.. Next review due 2027-01-05.

Suggest a correction to this field note →

Common questions

Questions this record can help resolve

Are all BNC cables 75 ohms?Keep BNC connector appearance separate from exact cable impedance, cable type, SDI/RF use, loss and run-length capability.

Evidence behind this page

Scope first. Source second. Approval separate.

1 linked sources · 1 scoped claims · 0 sources with inspection/access flags.

Page scope: cable_atlas_v58

Assessment 2026-10-22 · earliest scheduled source review 2027-01-05. This is a recorded-date assessment, not a live source check. Page-level independent review is not established by this panel.

Inspect 1 source scopes, access limits and dates

S379 · BNC Cable Assemblies

Amphenol RF · Manufacturer / product-owner domain · inspected 2026-10-07 · due 2027-01-05

Within inspection window

Scoped support: Family-level BNC cable-assembly impedance/construction diversity only.

Not established / limitations: A BNC connector shape alone does not establish impedance, cable type, SDI class, loss, length limit or system compatibility.

Locator: Manufacturer family overview: BNC assemblies in 50-ohm and 75-ohm variants, multiple cable types, configurations and lengths

Trace 1 claims to their source records

C319A · P319

Amphenol RF's BNC cable-assembly portfolio includes both 50-ohm and 75-ohm assemblies and multiple cable/configuration/length choices; BNC shape alone therefore does not determine impedance or application performance.

Claim scope: BNC cable-assembly family diversity only.

Source links: S379 · Evidence trail → (private workspace)

Prepare this page for review → (private workspace)Read the evidence method →

Recorded evidence only. An inspection date, publisher label, source link or generated packet is not independent technical review, hardware testing, fabrication approval or a compatibility verdict.