Common-mode choke coil

Details Common-mode choke coil Common-mode choke coil

2009-11-04

2010-12-21

Mai, Anh T (Department: 2832)

Inductor devices

Coil or coil turn supports or spacers

Printed circuit-type coil

C336S223000, C336S232000

Reexamination Certificate

active

07855627

ABSTRACT:
A common-mode choke coil has induction immunity characteristics that are improved by a coil structure preventing a transmitter IC and a receiver IC from malfunctioning during an induction immunity test and which controls a decrease in ESD resistance and a decrease in self-resonance frequency. The common-mode choke coil includes a core, external electrodes, a pair of coils, and a top plate. The core includes a core section and a pair of flange sections. The pair of coils are wound around the core section of the core, and the ends of the coils are connected to the external electrodes, respectively. An underside and a side surface of the top plate are plated with a metal film, and bonded to the top surfaces of the flange sections preferably by an adhesive agent. The metal film is segmented into two separate portions so as to define two separate metal sections with a gap therebetween so that the metal sections are electrically disconnected.

REFERENCES:
patent: 6242996 (2001-06-01), Sato et al.
patent: 6348850 (2002-02-01), Kimura et al.
patent: 6373366 (2002-04-01), Sato et al.
patent: 6522230 (2003-02-01), Hanato et al.
patent: 6717500 (2004-04-01), Girbachi et al.
patent: 7312682 (2007-12-01), Yasuda et al.
patent: 2002/0084878 (2002-07-01), Kimura et al.
patent: 2003/0071704 (2003-04-01), Toi et al.
patent: 2000-133522 (2000-05-01), None
patent: 2003-168611 (2003-06-01), None
patent: 2004-146671 (2004-05-01), None
patent: 2005-347407 (2005-12-01), None
patent: 2006-196492 (2006-07-01), None
patent: 2007-142931 (2007-06-01), None
Official Communication issued in International Patent Application No. PCT/JP2008/051826, mailed on May 13, 2008.

Affiliated with

Also associated with

Rating

Common-mode choke coil does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Common-mode choke coil, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Common-mode choke coil will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4217049