Sanyo Electric Co., Ltd.

Saga Sanyo Industries Co., Ltd.

Furukawa Precision Engineering Co., Ltd

Shinji Kodera

Hitoshi Ibuta

Kunio Shibata

Daisuke Manago

To provide an electrolytic capacitor having lead wires excellent in weldability with a boss member made of aluminum, excellent in solder wettability, and less whisker. The lead wires have a nickel plating layer in a thickness of 0.3 to 5.0 &#x3bc;m, a palladium plating layer in a thickness of 0.01 to 0.10 &#x3bc;m, and a gold plating layer in a thickness of 0.002 to 0.030 &#x3bc;m.

Electrolytic capacitor

An electrolytic capacitor includes an anode lead, a cathode lead and a seat plate. The seat plate has two grooves. The anode lead is bent along one of the grooves in the seat plate to be placed in the groove. The cathode lead is bent along the other groove in the seat plate to be placed in the groove. Accordingly, a space will be formed between the anode lead and the edges of one of the grooves in the seat plate, and likewise, between the cathode lead and the edges of the other groove in the seat plate. The anode lead and the cathode lead are mounted to a substrate with solders, and the electrolytic capacitor is mounted to the substrate. Accordingly, enhanced adhesion of the electrolytic capacitor to substrates is achieved.

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Saga, Japan

Shinji Kodera