Chip-like LC filter

A chip-like LC filter comprising:

• a magnetic element having a first through hole extending along a longitudinal axial direction thereof;
• a capacitor element provided with a first terminal electrode formed on an outer peripheral surface thereof, a second through hole extending along a longitudinal axial direction thereof, and a second terminal electrode formed on an inner peripheral surface thereof and defining said second through hole;
• a central conductor comprising a cylindrically rolled metal plate which is inserted in said first and second through holes to retain said magnetic element and said capacitor element in an axially aligned state, said central conductor being electrically connected with said second terminal electrode of said capacitor element;
• and
• first and secon external terminal means respectively provided on respective longitudinal end portions of said central conductor, said first and second external terminal means being electrically connected with said central conductor;
• and
• said central conductor being provided along at least part of its length along said longitudinal direction with an elastic contact portion which exerts an outward pressure radially of said central conductor to come into pressure contact with said second terminal electarode of said capacitor element to be elcatrically connected with the same, said elastic contact portion being located on an outer peripheral part of said rolled metal plate;
• wherein said first and second external terminal means respectively comprises first and second conductive cap-shaped members, one of said cap-shaped members at least partially covering said magnetic element which is located on an end portion of said central conductor and is electrically connected with said central conductor;
• wherein first and second cavities are provided adjacent respective end surfaces of said central conductor while first and second projections are provided on said first and second cap-shaped members and engaged with said first and second cavities.

A chip-like LC filter comprising:

• a magnetic element having a first through hole extending along a longitudinal axial direction thereof;
• a capacitor element provided with a frist terminal electrode formed on an outer peripheral surface thereof, a second through hole extending along a longitudinal axial direction thereof, and a second terminal electrode formed on an inner peripheral surface thereof and defining said second through hole;
• a central conductor comprising a cylindrically rolled metal plate, which is inserted in said first and second through holes which are aligned along said axial direction to retain said magnetic element and said capacitor element in an axaially aligned state, said central conductor being electrically connected with said second terminal electrode of said capacitor element;
• and
• first and second external terminal means respectively provided on respective longitudinal end portions of said central conductor, said first and second external terminal means being electrically connected with said central conductor;
• and
• said central conductor being provided along at least part of its length along said longitudinal direction with an elastic contact portion which exerts an outward pressure radially of said central conductor to come into pressure contact with said second terminal electrode of said capacitor element to be electrically connected with the same, said elastic contact portion being located on an outer peripheral part of said rolled metal plate.