Coaxial Cables

Coaxial Cables

Coaxial Feedthroughs

A coaxial cable has a center conductor insulated from a conducting outer shield which blocks electrical noise, providing stable and repeatable signals.

Designed to transfer low-current, low or high-voltage signals from low or high-impedance sources across the vacuum wall. The main characteristic is impedance (set by conductor diameters, spacing, and dielectric constant) and is not a function of length.

  • Double-ended: Use when continuous RF shielding through air ↔ vacuum is required.
  • Single-ended: Use when continuous shielding is less critical.
Connector Selection
  • BNC: 50 Ω / 75 Ω, low-power transmission lines.
  • MHV: Medium power with high-voltage requirement; pins are exposed.
  • SHV: High-voltage; male/female contacts are recessed for safety when disconnected.

Multiple conductors are available depending on connector type.

Grounded, Single End
Grounded Single End 1
Grounded Single End 2
Grounded, Double End
Grounded Double End 1
Grounded Double End 2
Floating Shield (Single & Double End)
Floating Shield Single
Floating Shield Double
Connector Overview
Connector Impedance Voltage Class Safety Feature Notes
BNC 50 Ω / 75 Ω Low-power Standard General lab/test; common for low-power lines.
MHV — Medium-power / High-voltage Pins exposed For HV where recessed contacts aren’t required.
SHV — High-voltage Recessed contacts Preferred for safety in disconnected condition.

For Product Selection and Quote

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