<p>A solid electrolytic capacitor comprising a capacitor element, and an insulating resin shell covering the capacitor element. The capacitor element comprises a part formed by winding an anode foil having a dielectric oxide film formed on the surface thereof and a cathode foil together through a separator, and a conductive polymer layer is formed between the anode foil and the cathode foil. An anode lead wire connected electrically with the anode foil and a cathode lead wire connected electrically with the cathode foil extend from the winding part and penetrate the shell before being connected with an anode terminal plate and a cathode terminal plate arranged on the surface of the shell.</p>
