Welcome to the Kurt J. Lesker Company.  

Sign In | Register

Current Region: International (Change) | Contact Us |   RSS   Twitter   LinkedIn   YouTube   Instagram


Please select your country or region to be
directed to the appropriate Lesker site.

MHV Feedthroughs - Weldable, Single-Ended

These instrumentation feedthroughs have MHV coaxial connectors on the air-side. Air-side MHV cable plugs are included with the feedthrough but vacuum-side connectors are not. Feedthroughs of this type are designed for welding into a suitable through-hole in a flange.

Specifications Table

Conductor MaterialStainless Steel
Insulator MaterialAlumina
Vacuum ApplicationUHV
Temperature Range
(for metal seals)
Weld Adapter, CF: -269°C to 450°C
Temperature Max. Ramp Rate25°C/minute
Temperature Range
(cable connectors)
Cable Connectors: -65°C to 165°C
Max. Voltage
(for floating shields)
Shield-Ground: 2,500V DC
Shield-Pin: 5,000V DC
Max. Voltage
(for grounded shields)
5,000V DC
Max. Current3.6A

Cabling Instructions
Follow the link below to view the MHV Feedthrough cabling diagrams & instructions.
Contact Us
To speak with someone directly, please call +1 412 387 9200 or email international@lesker.com.
Got VacuCADSM?
VacuCAD is a free library containing thousands of 2D CAD drawings (in DXF format) and 3D Models (in STP format) for many of our standard vacuum components and chambers. Please Log in

Ordering Table

(Click column headers to sort data)

Note: The electrical and thermal ratings specified are of safe operating limits determined by various factors including material properties, mechanical design, and the intended operating environment. All electrical ratings are based on operation with one side in dry atmosphere and the other side in vacuum of less than 1 x 10-4 Torr. All VacuCAD files as well as any dimensions shown or listed in our ordering tables do not include manufacturing tolerances and are provided for reference only.

Feedthrough Selection Guide
Finding the right feedthrough has never been easier with our step by step Feedthrough Selection Guide. You can narrow down our feedthrough offering by simply choosing from a variety of different options suitable to your requirements. If you can't find the feedthrough you need or want a custom configuration, please email sales@lesker.com with your inquiry.