Panasonic Intellectual Property Management Co., Ltd.

Yasuhiro Hiraki

Hiroki Takeoka

Hiroshi Kubota

Yukihiro Shimasaki

Hiroshi Fujii

Yukikazu Ohchi

Masahito Sano

Hidekazu Matsuoka

Ryosuke Kamiura

Ryo Majima

A film capacitor includes a first electrode layer, a second electrode layer, and a dielectric film disposed between the first and second electrode layers. The dielectric film mainly contains a styrene polymer having a syndiotactic structure. The first electrode layer includes first small electrode segments and a first fuse which interconnects the first small electrode segments. A value obtained by dividing an area of each of the plurality of first small electrode segments by the third power of a thickness of the dielectric film is not smaller than 0.4&#xd7;10/m and not larger than 5.0&#xd7;10/m. The film capacitor has a high withstanding voltage.

Film capacitor

A film capacitor includes a capacitor element and first and second external electrodes. The capacitor element includes a dielectric film, a first and a second electrode films facing each other across the dielectric film. The first electrode film includes electrode segments arranged in a matrix form, first fuses connecting the electrode segments adjacent to each other in a first direction, and second fuses connecting the electrode segments adjacent to each other in a second direction perpendicular to the first direction. The second fuses are arranged dispersedly in columns constituted by the electrode segments disposed in the second direction.

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

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Hyogo, Japan

Yasuhiro Hiraki