The so-called mica capacitor is a capacitor that uses natural mica as the medium of the capacitor. Its production method is to use metal foil or spray a silver layer on the mica sheet as the electrode plate. Powder or sealing made in epoxy resin. The following are the Features of mica capacitors:
①The capacity range is not wide, generally between 10~51000pF.
② High stability, high reliability, and can be made into high-precision capacitors.
③The inherent inductance is small, not easy to age, and the frequency characteristic is stable. It is one of the high-frequency capacitors with excellent performance.
④The insulation resistance is high, generally up to 1000～7500MΩ.
⑤The temperature characteristic is good, and the ambient temperature for use is generally in the range of -55℃～+85℃.
⑥The dielectric loss is small, and the loss tangent is generally.
⑦The price is more expensive, and has been gradually replaced by ceramic capacitors and organic film capacitors in recent years.
Mica capacitors are suitable for occasions that require high stability and reliability and high-frequency and high-voltage electronic equipment.Such as electronic, power and communication equipment instrumentation, but also used in aerospace, aviation, navigation, rockets, satellites, military electronic equipment and petroleum exploration equipment that require high stability and reliability.
