Tantalum Solid Electrolytic Capacitors

Abstract

A new type of electrolytic capacitor has been developed which provides a valuable supplement to the capacitors previously available to the circuit designer. In these new capacitors, a solid semi-conductor replaces the usual aqueous electrolyte. Because the materials are all inorganic nonvolatile solids, no hermetic seal is required for ordinary applications. Compared to other electrolytics, these capacitors are superior in low temperature characteristics and in shelf-aging. Their small size makes them especially suitable for transistor circuitry. They are in limited commercial production and are being used in a new rural carrier system.