PURPOSE: To realize a simplified manufacturing process of an LC composite component, to minimize a thermal stress at baking and to avoid troubles such as deformation or cracks or the like of the LC composite component.

CONSTITUTION: Many green sheets made of a composite ceramic material formed by blending magnetic ferrite powder and dielectric ceramic powder at a prescribed rate and a print conductor pattern are laminated and baked integrally as the laminated LC component. Then the component is provided with a choke coil 76 comprising 1st and 2nd coil conductors 73, 74 arranged in a sintered body and wound to progress in the broadwise direction of the sintered body and made conductive mutually and capacitors 71, 72 connected between terminals of the coil conductors 73, 74.