HomeHigh Power

High Voltage Feedthroughs

High Power / Voltage - Ultrahigh (UHV) High In-Vacuum (HV), drawing

High Voltage Vacuum Feedthroughs and Components

- 5kV, 10kV, 20kV, from 30 Amps to 150 AMPs 

High Voltage feedthroughs are hermetically-sealed and comprised of 304 stainless steel, OFE Copper, Vacuum Grade Brazed Alloy, and high Purity Alumina Ceramic. 

We offer four power ratings (up to 20,000 volts and 150 amps) that are rated from -200°C up to 250°C.  All have a vacuum range of 1x10-10 Torr (Ultrahigh UHV Vacuum) and 1x10-8 Torr (High Vacuum HV).  Our other high power feedthrough components consist of push-on and in-line connectors, vacuum polyimide cables that are for in-vacuum use as well as air service cables.

High Power / Voltage Feedthrough Specifications
  • Voltage, Maximum
  • Current, Per Pin Maximum @ 20ºC

5KVDC, 10KVDC, and 20KVDC
30 Amps and 150 Amps
High Power / Voltage Feedthrough Material Specifications
  • Shell
  • Conductor
  • Seal
  • Insulator
  • Connector, Air / Vacuum

304 Stainless Steel
OFE Copper
Vacuum Grade Braze Alloy
High Purity Alumina Ceramic
Silicone / Au-Plated Be-Cu

Feedthrough Vacuum Range Specifications
Vacuum Range 
  • UHV, Ultrahigh vacuum
  • HV, High vacuum

1x10-10 Torr
1x10-8 Torr
Feedthrough Temperature Range Specifications
Temperature Range 
  • Feedthrough
  • Flange Mount, Conflat
  • Flange Mount, ISO
  • Thermal Gradient

25ºC / Minute Maximum

All four styles are offered on Conflat compatible CF metal seal, ISO-KF elastomer seal flanges, and custom flanges (upon request).

High purity Alumina ceramic insulators (ceramic feedthrough) provide electrical isolation.  Pure copper conductors (OFE) provide maximum current capacity.  The high purity Alumina ceramic is bonded to metals in a vacuum furnace environment using semi-precious high temperature vacuum grade brazed alloys.