Solid electrolytic capacitor having a sealing vent structure

A solid electrolytic capacitor comprising:

• a capacitor element that has a valve-action metal substrate having an anode terminal region and a cathode formation region, a dielectric layer on the cathode formation region, a solid electrolyte layer on the dielectric layer, and a conductive layer on the solid electrolyte layer;
• a sealing material that seals the capacitor element to form a sealing body;
• and
• a vent structure embedded in the sealing material such that a portion of the vent structure is exposed on an outer surface of the sealing body, the vent structure being composed of a material that has a self-sealing valve action in which the vent structure turns into a melt at a reflow mounting temperature and the melt cleaves when receiving pressure of vaporized components generated inside the sealing body so as to form a hole communicating from an inside to the outer surface of the sealing body to discharge the vaporized components, and upon being cooled from the reflow mounting temperature, the melt flows and then solidifies so as to block the hole,
• the vent structure positioned between the sealing body and an anode lead drawn from the inside to the outer surface of the sealing body,
• the material of the vent structure solidifying between the sealing body and the anode lead upon being cooled from the reflow mounting temperature.