Patent ID: 8841226

Claim:
A dielectric ceramic composition comprising: a component represented by composition formula {α(xBaO.yNd 2 O 3 .zTiO 2 )+β(2MgO.SiO 2 )} as a main component; and zinc oxide, boron oxide, and a glass having a softening point of 570° C. or less as minor components with respect to the main component, wherein x, y, and z that respectively represent molar ratios of BaO, Nd 2 O 3 , and TiO 2 satisfy 14 (mol %)≦ x≦ 19 (mol %), 12 (mol %)≦ y≦ 17 (mol %), 65 (mol %)≦ z≦ 71 (mol %), and x+y+z= 100; α and β that represent volume ratios of subcomponents in the main component satisfy 35 (vol %)≦α≦65 (vol %), 35 (vol %)≦β≦65 (vol %), and α+β=100; and when the minor components are respectively represented by aZnO, bB 2 O 3 , and cglass, a, b, and c that represent mass ratios of the respective minor components to the main component satisfy 0.0 (mass %)≦ a≦ 4.25 (mass %), 0.0 (mass %)≦ b≦ 5.5 (mass %), 4.5 (mass %)≦ c≦ 10.0 (mass %), b≧a− 3, and a+b+c= 10.