Mwrf 9708 Johanson Eseries Promo
Mwrf 9708 Johanson Eseries Promo
Mwrf 9708 Johanson Eseries Promo
Mwrf 9708 Johanson Eseries Promo
Mwrf 9708 Johanson Eseries Promo

High-Q Capacitors Rise to the Occasion

Oct. 19, 2018
One of Johanson Technology’s specialties is high-Q capacitors, such as the E-Series multi-layer caps targeted at high-power applications.

For many high-power RF applications, the “Q factor” of embedded capacitors is one of the most important characteristics in circuit design. Often expressed as a mathematic formula, the Q factor represents the efficiency of a given capacitor in terms of its rate of energy loss.

Although many low-power applications do not require consideration of the capacitor’s Q factor, energy losses can increase significantly at higher frequencies. That means performance issues can arise even in low-power circuits.

Johanson Technology addresses this issue for high-power applications by offering high-Q capacitors, which are characterized as having ultra-low equivalent series resistance (ESR). In addition to minimizing energy loss, the high-Q capacitors reduce thermal noise caused by ESR to assist in maintaining desired signal-to-noise ratios.

To achieve the lowest energy losses, Johanson leverages the lowest loss dielectrics, inks, and electrode options.  Although most low-cost commodity capacitors utilize nickel electrodes, it’s a poor conductor known for high loss at high frequencies.  

Silver and copper electrodes perform better for most high-Q applications. For the highest-power RF applications, silver electrodes are incorporated in Johanson’s E-Series multi-layer RF capacitors. These capacitors are available in EIA-standard 1111, 2525, and 3838 sizes.

The company offers high-Q MLCC capacitors in both horizontal and vertical electrode orientation configurations when mounted in tape-and-reels. Mounting capacitors in a vertical configuration can effectively extend the usable frequency range of capacitors.

For more information, contact Johanson Technology at (805) 389-1166, e-mail [email protected], or visit the website.

Sponsored Recommendations

Microelectromechanical 3D Printing Resources

March 28, 2024
Check out our curated list of microelectromechanical 3D printing resources and see how PµSL technology offers freedom and speed.

Understanding 3D Printing Tolerances: A Guide to Achieving Precision in Additive Manufacturing

March 28, 2024
In the world of additive manufacturing, precision is paramount. One crucial aspect of ensuring precision in 3D printing is understanding tolerances. In this article, we’ll explore...

Making the Case for Micro-Precision 3D Printing

March 28, 2024
Read this white paper to learn how micro-precision 3D printing can provide the flexibility of additive manufacturing at a micro scale.

125 GHz Frequency Doubler using a Waveguide Cavity Produced by Stereolithography

March 28, 2024
Read this technical paper to learn how a 125 GHz frequency doubler using a waveguide cavity was produced by stereolithography.