dielectric ceramic composition and ceramic electronic components

摘要

PROBLEM TO BE SOLVED: To provide a dielectric ceramic composition showing excellent reliability, while keeping a high relative dielectric constant, even when especially a dielectric layer is thinned, and to provide a ceramic electronic component to which the dielectric ceramic composition is applied, concerning the dielectric ceramic composition and the ceramic electronic component.SOLUTION: This dielectric ceramic composition contains a main component comprising barium titanate, and contains R1 (R1 is at least one kind or more between Y and Ho) as an accessory component with respect to barium titanate. The dielectric ceramic composition has a core-shell structure and has a shell satisfying an inequality: Ba site substitution amount of R1/Ti site substitution amount of R11. Preferably, the dielectric ceramic composition contains both R1 and R2 (R2 is at least one kind or more between Eu, Gd and Tb). More preferably, the thickness of a dielectric layer is ≤1.0 μm. Thus, effects of this invention can be heightened.