US Patent 7193840 Solid electrolytic capacitor

A solid electrolytic capacitor having a plurality of capacitor elements is provided that is small in size and has good electrical characteristics. The solid electrolytic capacitor includes a plurality of capacitor elements each having a dielectric film, a cathode layer, and a cathode lead-out layer formed in succession on a surface of an anode body having an anode lead part, each anode lead part of the capacitor elements connected to an anode terminal, each cathode lead-out layer of the capacitor elements connected to a cathode terminal, and the plurality of capacitor elements covered by a housing made of resin. The capacitor elements 1 are mounted on the cathode terminal 2 at an interval, the cathode terminal 2 is provided with a cathode resin-filling opening 2a, and the resin is filled between the capacitor elements 1 and in the cathode resin-filling opening 2a. Alternatively, the capacitor elements 1 are mounted side by side on the cathode terminal 2 at an interval, a distance a between the capacitor elements 1 is substantially equal to a distance b from outside surfaces of outermost capacitor elements 1 among the capacitor elements 1 to an outside surface of the housing 9, and the resin is filled between the capacitor elements 1. Alternatively, the capacitor elements 1 are mounted side by side on the cathode terminal 2 at an interval, and the cathode terminal 2 is provided with ridged portions 10 between the capacitor elements 1. Alternatively, the capacitor elements 1 are mounted side by side on the cathode terminal 2 at an interval, and a cushioning member 11 is disposed between the capacitor elements 1.