BNC Coaxial

<h2>Coaxial BNC Feedthroughs and Components</h2><p>The 'Bayonet Neill-Concelman' Connector, usually referred to as a <strong>BNC coaxial</strong> connection, is commonly used in conjunction with low noise 50-ohm instrumentation lines.&nbsp; Accu-Glass Products' coaxial BNC instrumentation feedthroughs are constructed with either floating shields or grounded shields.</p><p><strong>Floating</strong> shields provide two concentric conductors: one outer metal tube or shield conductor concentric with, and enclosing, a cylindrical center conductor.&nbsp; Both electrical paths are electrically isolated from the vacuum flange.</p><p><strong>Grounded</strong> shields provide only one electrical path that is electrically isolated from the vacuum flange.&nbsp; With grounded shields, the shield and vacuum flange are electrically common.</p><p><strong>Ultrahigh (UHV) </strong>compatible coaxial cable assemblies are available to meet the needs of most <strong>in-vacuum</strong>, low noise instrumentation cable applications.&nbsp; The vacuum side of a grounded and floating BNC feedthrough consists of a 0.094 inch (2.4mm) diameter conductor pin that mates perfectly with Accu-Glass Products' grounded, or floating Accufast™ connector interface.</p><p><img src="/sites/default/files/inline-images/bnccoaxial_9.png" data-entity-uuid="455fccbd-b364-4c85-bed0-26ae8e9a0ed2" data-entity-type="file" alt="mating warning diagram on differences between BNC and MHV feedthroughs" width="600" height="291"></p>