Patent ID: 7751178

Claim:
A dielectric ceramic comprising: a perovskite type compound represented by the composition formula (Ba 1-x-y Ca x Sn y ) m (Ti 1-z Zr z )O 3 where 0≦x≦0.20, 0.02≦y≦0.20, 0≦z≦0.05, and 0.990≦m≦1.015, respectively, as a primary component; and RE as an accessory component, where RE is at least one member selected from the group consisting of Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu, wherein 0.5 to 20 molar parts of RE is present with respect to 100 molar parts of the primary component.