Tantalum capacitors with internal current-limiting means
AssigneeLignes Telegraphiques et Telephoniques
InventorsBalint Escher, Dominique Prince, Rene Romanet
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Abstract
An improved solid-electrolyte tantalum capacitor for decreasing the danger of tantalum capacitors fires. An opening is provided in the external protection of the capacitor to allow the evacuation of the solder providing the contact between the cathode lead and the cathode when molten.
Claims5
A solid-electrolyte tantalum capacitor comprising a frittered tantalum powder anode oxidized on the surface and impregnated and coated with manganese dioxide, conducting layers deposited on said dioxide, an anode lead in contact with said frittered tantalum, a soldered cathode lead soldered to said conducting layers and a protection provided by a casing or moulded coating, said protection being provided with an opening communicating to the outside of said casing close to the soldered cathode lead, for evacuating molten solder.
Dependencies are inferred from the claim text.