High-voltage vacuum feedthroughs provide hermetic electrical interfaces for transmitting kV-level DC or pulsed voltage across HV/UHV vacuum boundaries. They are engineered for applications requiring high dielectric strength, stable insulation, and long-term reliability, including accelerators, vacuum instrumentation, and high-voltage research systems. Voltage range: kV-level (application dependent) Signal type: DC or pulsed high voltage Vacuum rating: HV / UHV compatible Insulation: ceramic-to-metal hermetic seal Polarity: positive or negative HV Operation: continuous or pulsed What This Product Demonstrates This page presents representative high-voltage vacuum feedthrough designs. Final assemblies are custom-engineered based on voltage level, insulation distance, flange standard, and vacuum environment. Typical Applications Particle accelerators and beamline components Electrostatic lenses and deflectors High-voltage electrodes in vacuum Vacuum power supplies and test systems Scientific and industrial HV vacuum equipment What Is a High-Voltage Vacuum Feedthrough? A high-voltage vacuum feedthrough enables electrical power to pass from atmosphere into a vacuum chamber while maintaining electrical insulation and vacuum integrity. The design relies on a ceramic-to-metal hermetic seal that provides both dielectric isolation and mechanical strength under high electric fields. Key Design Considerations Electric field distribution and creepage distance Dielectric strength of ceramic insulator Surface flashover prevention Thermal and mechanical stress during bakeout Long-term stability under high voltage Customization Options Maximum operating voltage (kV level) DC or pulsed voltage operation Single-pin or multi-electrode designs Flange type (CF / KF / custom) Ceramic length and diameter Grounding and shielding configuration Engineering Specification Checklist Target voltage level (kV) DC or pulsed operation Vacuum level (HV / UHV) Bakeout temperature requirement Flange type and mechanical constraints Polarity and insulation clearance Environmental and safety requirements Related Feedthrough Solutions Accelerator & BPM Feedthroughs RF & Microwave Vacuum Feedthroughs High-Current Vacuum Feedthroughs Custom & Hybrid Feedthroughs FAQ What voltage range can a high-voltage vacuum feedthrough support?High-voltage vacuum feedthroughs can be designed for kV-level operation. The exact rating depends on ceramic geometry, insulation distance, and vacuum conditions. Can high-voltage feedthroughs be used in UHV systems?Yes. Properly designed ceramic-to-metal sealed feedthroughs are compatible with UHV environments and high-temperature bakeout. Are these feedthroughs suitable for pulsed high voltage?Yes. Designs can support both continuous DC and pulsed high-voltage operation, depending on application requirements.
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