Noise filter and mounted structure of noise filter

Details Noise filter and mounted structure of noise filter Noise filter and mounted structure of noise filter

2007-01-19

2008-10-07

Tran, Anh Q (Department: 2819)

Wave transmission lines and networks

Coupling networks

Frequency domain filters utilizing only lumped parameters

C333S172000, C333S184000, C333S204000

Reexamination Certificate

active

07432784

ABSTRACT:
A noise filter has an element body, first to fourth terminal electrodes, and a connection conductor. The first to fourth terminal electrodes are disposed on the exterior of the element body. The connection conductor is also disposed on the exterior of the element body. A capacitor is formed in the element body and is electrically connected between the first and second terminal electrodes and the third and fourth terminal electrodes. The first and second terminal electrodes are electrically connected through the connection conductor. The connection conductor is covered by a resin containing ferrite. Since the connection conductor is covered by the resin containing ferrite, the connection conductor and the ferrite-containing resin function as a ferrite bead inductor.

REFERENCES:
patent: 5357227 (1994-10-01), Tonegawa et al.
patent: 7161446 (2007-01-01), Uchida et al.
patent: A 55-43869 (1980-03-01), None

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