Paper capacitors are a type of capacitor with a layered construction of aluminium sheets separated by waxed or oiled paper sheets. The paper between the aluminium acts as the dielectric (insulating) material. Some paper capacitors feature a cardboard cover while others are encapsulated in hard plastic. What do capacitors do? Capacitors are a type of passive component that stores an electrical charge. The more charge a capacitor can store, the larger its capacitance is. Capacitance is measured in denominations of farads – such as microfarads or picofarads. What are the advantages and disadvantages of paper capacitors? Paper capacitors have a high working voltage and a high capacitance range. They are suited to high voltage and high current applications. The paper dielectric provides excellent stability and reliability of the component. Paper capacitors tend to have high leakage rates, making them unsuitable for applications such as AC coupling Paper capacitors typically have tolerances between ±10% and ±20%, making them unsuitable for precision timing circuits.
Description:
The PME271Y Series is a self-healing multi-layering metallised
paper class Y suppression capacitors. Constructed using epoxy impregnated metallised paper and encased in epoxy resin. This ensures active and passive flame retardant properties combined with excellent stability and reliability especially in ...
Description:
Suitable for double or reinforced insulated applications (class
Y1)440Vac rating for use in Y class applicationsVery precise positioning of the leads in relation to the case allow efficient utilisation of board spaceSelf extinguishing UL94V-0 (1.6mm) encapsulation materialExcellent self-healing properties ensuring ...
Description:
KEMET PME261 Series Paper capacitors are encapsulated and
impregnated in self-extinguishing material meeting the requirements of UL 94V‑0. The impregnated paper ensures excellent stability giving outstanding reliability properties, especially in applications having continuous operation. High dV/dt ...
Description:
Highest possible safety regarding active and passive flammability
due to metallised paper constructionHigh dV/dt and excellent self healing properties ensuring long life when subject to frequent over voltagesEncapsulation meets UL94-0.