Device to protect against a surge voltage and an electronic...

Details Device to protect against a surge voltage and an electronic... Device to protect against a surge voltage and an electronic...

2006-06-26

2010-11-09

Lee, Kyung (Department: 2833)

Electrical resistors

Resistance value responsive to a condition

Current and/or voltage

C338S307000, C338S327000

Reexamination Certificate

active

07830239

ABSTRACT:
A device to protect against a surge voltage includes a body having a hexahedron shape and filled with a varistor material, a pair of input signal electrodes attached to a first side surface of the body along upward and downward directions, a pair of output signal electrodes attached to a second side surface of the body that faces the first side surface of the body in the upward and downward directions, a ground electrode attached to an upper surface of the body, at least one pair of signal connection electrode plates to connect the input signal electrodes and the output signal electrodes, and a ground plate to be connected to the ground electrode. Thus, the device can protect an electronic circuit from a surge voltage and match an impedance of a transmission line.

REFERENCES:
patent: 5155464 (1992-10-01), Cowman et al.
patent: 5438473 (1995-08-01), Allina
patent: 5969929 (1999-10-01), Kleveland et al.
patent: 5985414 (1999-11-01), Fukuda et al.
patent: 6549114 (2003-04-01), Whitney et al.
patent: 6657532 (2003-12-01), Shrier et al.
patent: 1542873 (2004-11-01), None
patent: 2001-60838 (2001-03-01), None
patent: 1999-16743 (1999-03-01), None
patent: 2004-80823 (2004-09-01), None
patent: 2004-89550 (2004-10-01), None
Chinese Office Action dated Sep. 19, 2008 issued in CN 2006-10128570.4.

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