Mica capacitor standard

What is a mica capacitor?

The mica capacitor is made from thin sheets of mica that have been coated with deposited metal on both sides and then dipped in epoxy to protect it from the environment. Mica minerals are electrically, chemically and mechanically stable. RS offer a wide range of high-quality Mica capacitors from leading brands such as Cornell-Dubilier and RS PRO.

Are there different types of mica capacitors?

There are several types of mica capacitors available depending on the form factor, voltage, capacitance range and lead spacing required. What applications are mica capacitors used in?

Why are mica capacitors used in high-frequency applications?

They are commonly found in high-frequency applications as they have qualities that allow them to provide low loss and low capacitor change-over time. The mica capacitor is made from thin sheets of mica that have been coated with deposited metal on both sides and then dipped in epoxy to protect it from the environment.

What materials are used in mica capacitors?

In mica capacitors, mica is used as the dielectric material. This dielectric material opposes the flow of electric current or electric charges. Different types of mica are used in mica capacitors such as Muscovite or white mica, ruby or rose mica, and amber mica.

How are silver mica capacitors manufactured?

Silver mica capacitors are manufactured by coating either side of the mica sheets with silver. This process can be done using a screening technique. Several silver-coated mica sheets are arranged one over another to achieve the desired capacitance. The silver on the mica acts as electrodes, while the mica sheets act as dielectric.

Who makes Mica dielectric capacitors?

As the inventor of the mica capacitor, we are the world’s foremost authority and largest manufacturer of mica dielectric capacitors. Our RF mica capacitors feature superior high Q performance without the undesirable properties associated with ceramic and porcelain capacitors.