The Alpha Technology 30 kV High Voltage Vacuum Feedthrough brings kilovolt-level DC power through a vacuum chamber wall without compromising ultra-high vacuum (UHV) integrity. It is engineered for particle accelerators, electron-beam equipment, ion implanters and high-voltage test chambers where a long ceramic creepage path prevents arcing and surface breakdown.
30 kV High Voltage Vacuum Feedthrough — Key Specifications
| Voltage Rating | 30 kV DC |
|---|---|
| Max Current | 3 – 48 A |
| Vacuum Leak Rate | UHV < 1×10⁻¹⁰ mbar·l/s |
| Flange | CF / KF |
| Number of Pins | 1 / 2 |
| Conductor Material | Copper / Nickel / Molybdenum / Stainless Steel |
| Temperature Range | -150 °C to 450 °C |
Why It Meets UHV Requirements
- Metallized high-purity alumina ceramic insulator brazed to a stainless steel body — a true hermetic seal with no organic potting or outgassing materials
- Extended ceramic creepage path for reliable operation at 30 kV DC in vacuum
- Leak tested to < 1×10⁻¹⁰ mbar·l/s (helium mass spectrometry)
- Fully bakeable to 450 °C for UHV conditioning protocols
- CF or KF flange, 1 or 2 pins, conductor material selected to match your current and temperature requirements
Typical Applications
- Particle accelerators and beam lines
- Electron-beam welding and processing machines
- Ion implantation and sputtering systems
- High-voltage test and conditioning chambers
Custom & OEM Options
Every Alpha Technology feedthrough is manufactured to order. Voltage, current, pin layout, conductor material, flange and mounting geometry can all be customized. Contact us with your drawing or specification and our engineers will provide a free design review.
FAQ
What flange sizes are available?
The 30 kV feedthrough is available on CF16–CF200 and KF16–KF50 flanges. Custom flange patterns, including non-standard hole circles and baseplate mounting, can be machined to your drawing.
Can I get a custom high voltage feedthrough?
Yes. Voltage, current, pin count, conductor material, flange type and creepage length are all customizable. Send your specification via our contact form and our engineers will respond with a design review — free of charge.
What is the price?
Because every high voltage feedthrough is built to order, pricing depends on voltage, current, flange and quantity. Request a quotation with your specifications to receive a custom price.
Related Products
See our full range of vacuum feedthroughs, explore edge welded bellows for motion transmission into vacuum, or read the bellows design & selection guide.
Ready to specify your feedthrough? Request a quote — our engineers respond within one business day.
