A component made with sheets of metal stacked alternately with wafers of ceramic. This material, like mica, has low loss, and therefore allows for high efficiency. For low values of capacitance, only one layer of ceramic is needed, and two metal plates can be glued to a disk of porcelain, one on each side. Alternatively, a tube or cylinder of ceramic can be employed, and metal ink applied to the inside and outside of the tube. These capacitors have values ranging from a few picofarads to about 0.5 F. Their voltage ratings are comparable to those of paper capacitors. Compare electrolytic capacitor, mica capacitor, paper capacitor, plastic- film capacitor, tantalum capacitor.