Panasonic Intellectual Property Management Co., Ltd.

Ryosuke Kamiura

Hiroki Takeoka

Hiroshi Kubota

Yukihiro Shimasaki

Hiroshi Fujii

Yukikazu Ohchi

Yasuhiro Hiraki

Ryo Majima

A film capacitor includes a capacitor element including a dielectric film and a pair of electrode layers facing each other across the dielectric film, and a pair of end-surface electrodes provided on both ends of the capacitor element. At least one electrode layer of the pair of electrode layers mainly contains aluminum and further contains zinc and magnesium. A peak of an atomic concentration of magnesium of the electrode layer is located at a position closer to a surface of the electrode layer than a peak of an atomic concentration of zinc of the electrode layer. The film capacitor has a high humidity resistance.

Film capacitor

A metalized film capacitor includes metalized films, each of which is formed of an insulating film made of dielectric, and a vapor deposited metal electrode formed on an upper surface of the insulating film. An end of the vapor deposited metal electrode extends together with an end of the insulating film, and both the ends are connected to an electrode terminal. The vapor deposited metal electrode of the metalized film includes a center region and a low resistance section that is made of Al&#x2014;Zn&#x2014;Mg alloy. The low resistance section is disposed at an end of the electrode and is thicker than the center region. This metalized film capacitor has high humidity resistance.

Metalized film capacitor

Growing community of inventors

Osaka, Japan

Ryosuke Kamiura