Patent ID: 6348850
Filing Date: 2002-02-19
Classification: H01F

Abstract:
A common mode choke coil comprising:a ferrite core having a winding core with a first end and a second end; two square planar flanges, each of said square planar flanges having a left end having a recess, a right end having a recess, and a winding core side having a beveled face, each of said square planar flanges being formed integrally on each of the first and second ends of said winding core; an external electrode formed on each of said left and right ends of both substantially square planar flanges; a plurality of windings wound about the winding core of the ferrite core, said windings being conductively connected by thermal pressure bonding to said external electrodes at the recesses provided in the left and right sides thereof; and a ferrite plate having a first end and a second end, said ferrite plate being adhesively bonded by an adhesive or a resin packaging material to an outermost surface of the windings, and said first end and said second end thereof being fitted tightly against the beveled faces of the flanges to securely join the two flanges at both ends of the ferrite core.