Patent ID: 8614880

Claim:
A solid electrolytic capacitor comprising: a capacitor element having a positive electrode lead wire protruding from a front end face of the capacitor element and a negative electrode layer provided at an outer periphery of the capacitor element; a positive electrode lead terminal electrically connected to the positive electrode lead wire; and a negative electrode lead terminal electrically connected to the negative electrode layer, wherein the capacitor element, the positive electrode lead terminal, and the negative electrode lead terminal are sealed with an exterior sealing element made of synthetic resin except for a part of the positive electrode lead terminal and the negative electrode lead terminal, and wherein the positive electrode lead terminal includes: a positive electrode base frame arranged along a lower surface of the exterior sealing element so as to correspond to the positive electrode lead wire; a raised connecting piece arranged to extend upward from an edge of the positive electrode base frame along a front end face of the capacitor element and having an upper edge to which the positive electrode lead wire is connected; and reinforcing pieces arranged at both side edges of the raised connecting piece and between both side edges of the positive electrode base frame, the reinforcing pieces extending above the positive electrode base frame such that a force acting downward on the raised connecting piece is received by the positive electrode base frame via the reinforcing pieces; the raised connecting piece and the positive electrode lead wire are joined by welding; the positive electrode lead wire is secured to the raised connecting piece in such a manner that the positive electrode lead wire is fitted in a dent of the raised connecting piece; and a fit-in amount of the positive electrode lead wire with respect to the raised connecting piece is 2/5 to ¾ of an outer diameter of the positive electrode lead wire.