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US 6,285,535 B1Granted
Surge absorber
AssigneeMitsubishi Materials Corporation
InventorMasahiko Nakamura
Life of this patent
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Abstract
An inductive lightening surge installed at input and output circuits or other locations of circuits of communication devices where a surge noise may be generated or a surge absorber for avoiding failure and erroneous operation of electronic devices by mixed contact or the like of AC circuits in which a first terminal electrode 2, a conductive film 5 having a micro-gap 3 and a second terminal electrode 4 are formed in shapes of concentric circles on an insulating substrate 1 in a flat plate shape.
Claims20
A surge absorber comprising:
- an insulating substrate in a flat plate shape;
- a conductive film having a gap in an annular shape and formed in a circular disk shape concentric with the gap on the insulating substrate;
- a first electrode arranged at a central portion of the conductive film;
- a second electrode in an annular shape constituting a circle concentric with the gap arranged at a peripheral edge portion of the conductive film;
- an air-tight crowned member for hermetically sealing the conductive film, the first electrode and the second electrode in a state where a predetermined gas is filled at an inside thereof in cooperation with the insulating substrate;
- at least one first terminal arranged at an outside of the air-tight crowned member for being electrically connected to the first electrode;
- and
- at least one second terminal arranged at the outside of the air-tight crowned member for being electrically connected to the second electrode.
5 more elements
Dependencies are inferred from the claim text.