The high quality CLASS 1 ceramic dielectric materials selected for our RF feedthrough capacitors feature low or medium permittivity, high Q factor (low loss), high dielectric breakdown strength, low magnetic susceptibility and good capacitance-temperature stability.
The range includes units with diameters from 28 to 55mm and lengths from 88 to 165mm. All our RF feedthroughs feature a central conductor that facilitates passage of the high RF current. This open tubular design makes full use of convection currents to offer high load power ratings in a relatively compact unit and the low loss ceramic and noble metal electrodes ensure low self-heating.
Our RF feedthrough capacitors are made using low self-inductance construction, which allows them to be used at higher frequencies. They have a good capacitance-temperature stability (very low NPO / COG) for minimal frequency drift and are proven robust for long operational life.
RF feedthrough capacitors are ideal for industrial and high power applications including:
- Radio broadcast transmitters
- Induction and dielectric heating equipment
- HF filter, by-pass and coupling and oscillating circuits
- High power matching tuned circuits
- Antenna coupling circuits
- Plasma generators
- High quality medical imaging systems (MRI)
RF feedthrough capacitors are available in a wide range of capacitance-voltage combinations and ratings. Bespoke units can also be produced to customers’ specifications including custom metalwork connections and resin-coated options.
For more information on standard or bespoke RF feedthrough capacitors for your project please contact us.