Vacuum Capacitors · Variable Vacuum Capacitors
CVAR-400 Variable Vacuum Capacitor (up to 400 pF)
Available on request
Comet
CVAR-400
Large-range variable vacuum capacitor with up to 400 pF tuning range for high-capacitance RF matching and plasma tuning applications.
- Capacitance Range
- up to 400 pF
- Working Voltage DC
- 10 kV
- Max Current
- 100 A RMS
- Type
- Variable
Worldwide shipping
Cross-reference support
Grunius BV · Groningen, NL
CVAR-400
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About the CVAR-400
The CVAR-400 is a variable vacuum capacitor manufactured by Comet. Large-range variable vacuum capacitor with up to 400 pF tuning range for high-capacitance RF matching and plasma tuning applications.
Key ratings of the CVAR-400 include type Variable, capacitance range up to 400 pF, working voltage dc 10 kV and max current 100 A RMS.
Typical applications are high-capacitance RF matching, large plasma RF systems, industrial 13.56 MHz tuning and high-current RF tank circuits. Notable features: up to 400 pF large range, 100 A high-current capability, 10 kV working voltage and high-capacitance plasma use.
Variable vacuum capacitors allow the capacitance to be tuned under high RF voltage and are the key element of RF matching networks for semiconductor plasma processing, broadcast antenna tuning and industrial RF generators. Selection is based on capacitance range, test voltage, RF current and drive type.
PartnerTubes supplies the CVAR-400 worldwide from Groningen, the Netherlands — availability, lead time and price are confirmed per enquiry. Our team can help with equivalent and cross-reference types, sockets and accessories, and supply programmes for OEM and maintenance customers. Interchangeability must always be confirmed for the specific equipment.
Technical specifications
| Type | Variable |
|---|---|
| Capacitance Range | up to 400 pF |
| Working Voltage DC | 10 kV |
| Max Current | 100 A RMS |
Specifications are indicative and based on published manufacturer data. Always verify against the official datasheet and confirm suitability for your application before ordering.
Applications & features
Used in
- High-capacitance RF matching
- Large plasma RF systems
- Industrial 13.56 MHz tuning
- High-current RF tank circuits
Key features
- Up to 400 pF large range
- 100 A high-current capability
- 10 kV working voltage
- High-capacitance plasma use
Related parts & equivalents
Recommended alongside or as alternatives to the CVAR-400.
Similar Vacuum Capacitors
Comparable type, ratings, manufacturer or applications.
Jennings UCSL 10–60 pF Variable Vacuum Capacitor
Jennings Technology (CPI)
Capacitance Range 10–60 pF
Power grid tubes used with vacuum capacitors
Often ordered with the CVAR-400 for the same system.
Frequently asked questions
What is the CVAR-400?
The CVAR-400 is a variable vacuum capacitor manufactured by Comet. Large-range variable vacuum capacitor with up to 400 pF tuning range for high-capacitance RF matching and plasma tuning applications.
What are the specifications of the CVAR-400?
Type: Variable; Capacitance Range: up to 400 pF; Working Voltage DC: 10 kV; Max Current: 100 A RMS.
What is the CVAR-400 used for?
The CVAR-400 is used in high-capacitance RF matching, large plasma RF systems, industrial 13.56 MHz tuning and high-current RF tank circuits.
What are alternatives or related parts to the CVAR-400?
Related and comparable parts include CVAR-800, CCV-25-200, CVDD-3000-10S, GLA-01-5S, CCV-10-100 and GLA-01-2S. Contact PartnerTubes to confirm interchangeability for your equipment.
Where can I buy the CVAR-400?
The CVAR-400 is available from PartnerTubes (Grunius BV, Groningen, Netherlands) with worldwide shipping. Availability and lead time are confirmed on request. Request a quote at https://www.partnertubes.com/contact/?part=CVAR-400 or email info@partnertubes.com.