Patent ID: 8450230

Claim:
A dielectric ceramic composition comprising; a main component composed of one selected from the group consisting of BaTiO 3 , (Ba, Ca)TiO 3 , (Ba, Sr)TiO 3 and (Ba, Ca, Sr) TiO 3 , an oxide of R element, where R element is at least one selected from the group consisting of Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu, and a composite compound including Ba, wherein 9 to 13 mol of said composite compound in terms of composite compound is included with respect to 100 mol of said main component, said dielectric ceramic composition includes surface diffusion particles having surface diffusion structure which is composed of non diffusion phase and diffusion phase existing around said non diffusion phase and including at least said R element, in said surface diffusion particle, when an area occupied by said non diffusion phase is defined as S1, and an area occupied by said diffusion phase is defined as S2, S1 and S2 satisfy a relation of S1:S2=20:80 to 30:70 (Note that, except S1=30 and S2=70), when an average concentration of said R element in said surface diffusion particle is defined as C, S2 and C satisfy a relation of 4.8≦S2×C≦5.8.