Thin wire/thick wire lead assembly for electrolytic capacitor

摘要

A capacitor containing a solid electrolytic capacitor element including a sintered porous anode body, a first anode lead, and a second anode lead is provided. The first anode lead has a thickness that is larger than a thickness of the second anode lead. A portion of the first anode lead is embedded in the porous anode body, and a second portion of the first anode lead extends from a surface thereof in a longitudinal direction. Meanwhile, the second anode lead is electrically connected to the anode body for connection to an anode termination. In one embodiment, the second anode lead can be directly connected to a surface of the anode body. In another embodiment, the second anode lead can be indirectly connected to the anode body such as via attachment at an end of the second portion of the first anode lead.

主权项

1. A solid electrolytic capacitor that comprises a capacitor element, the capacitor element comprising:
a sintered, porous anode body formed from a tantalum powder; a first anode lead, wherein a first portion of the first anode lead is embedded within the porous anode body and a second portion of the first anode lead extends from a surface of the porous anode body in a longitudinal direction; a second anode lead, wherein the second anode lead is positioned external to the porous anode body; a dielectric layer overlying the sintered porous anode body; and a cathode overlying the dielectric layer that includes a solid electrolyte, wherein the solid electrolyte includes manganese dioxide or a conductive polymer.