MIL-C-25 Capacitors, Fixed, Paper Or Plastic Dielectric, Direct Current, \(Hermetically Sealed In Metal Cases\), General Specification ForThis specification covers the general requirements for direct-current \(dc\) paper-dielectric, fixed capacitors hermetically sealed in metal cases, intended primarily for filter, by-pass, and blocking purposes where the alternating-current \(ac\) component of the impressed voltage is small with respect to the dc voltage rating.