Mitsubishi Materials Corporation

Kouichirou Harada

Yoshiyuki Tanaka

Hitoshi Inaba

Takahiro Nakamoto

Naoto Kitahara

Yasuhiro Shato

Tsuyoshi Ogi

Kazutaka Hujiwara

Heisen Ryu

Nobuya Saruwatari

Yoshihisa Sawada

Yasuhiro Shatou

In a surge absorber, a pair of protrusion electrodes is fixed to a pair of terminal electrode members at positions shifted from the center of the terminal electrode members to be point-symmetrical with the center of a ceramic insulator tube and a distance between the protrusion electrodes is adjusted so as to obtain a desired discharge starting voltage. As a result, it is possible to easily change the distance between the discharge electrodes without changing the length of the discharge electrodes.

Surge absorber

A chip-type surge absorber and method for producing same, wherein the chip-type surge absorber includes an insulating substrate in the shape of a rectangular parallelepiped; an insulating hermetic cap open at a bottom side thereof, for forming, together with the insulating substrate, a box-shaped hermetically sealed cavity filled with a discharge gas; terminal electrodes disposed at both ends in the hermetically sealed cavity; a pair of discharge electrodes which are formed in the hermetically sealed cavity such that a discharge gap is formed between the discharge electrodes and such that the discharge electrodes are electrically connected to corresponding terminal electrodes; and connection surfaces for increasing the connection area for the connection between the discharge electrodes and the terminal electrodes.

Chip-type surge absorber and method for producing the same

Growing community of inventors

Chichibu-gun, Japan

Kouichirou Harada