Electrolytic capacitor with a hermetic seal.

摘要

An electrolytic capacitor has a glass-to-metal hermetic seal which includes a metal washer bonded to a compression ring having the same outer diameter but larger inner diameter than the washer. A mass of glass containing a tubular feedthrough having substantially the expansion coefficient of the glass abuts the inner diameter of the ring and is bonded to the washer. The seal is attached to an open end of a capacitor housing solely around the bottom periphery of the washer.