This standard covers polarized aluminum electrolytic capacitors intended for long life application (Type 1) and general purpose application (Type 2), both for use in low frequency filter and by-pass circuits where the service is normally direct current.

Standard styles, mountings (where applicable), ratings, temperature ranges, case sizes, test methods, and requirements are specified. This standard does not relate capacitance and voltage ratings to specific case sizes. The actual ratings for particular case sizes are a matter of negotiation between the manufacturer and his customer.

Capacitors for use in pulse discharge, photoflash, or similar devices are excluded.

If more stringent environmental performance is required, it is recommended that applicable military specifications be referenced.

Object:

To establish uniform requirements for judging the electrical, mechanical, and environmental properties of these two types of capacitors, to describe test methods, and to give recommendations for standard ratings and dimensions. Another object is to encourage the use of this standard as a procurement document. Where special or added requirements are required, it can be used as a reference or base document from which the user might want to generate his own in-house document.