Patent ID: 7397649

Claim:
A dielectric ceramic comprising: as a primary component, a compound represented by the general formula: (Ba 1-t Ca t ) m (Ti 1-u-x Zr u Cu x )O 3 in which 0.96≦m≦1.02, 0.001≦x≦0.03, 0≦t≦0.1, and 0≦u≦0.06; and as accessory components, Re which is at least one member selected from the group consisting of La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu and Y, M which is at least one member selected from the group consisting of Mn, Ni, Fe, Co, V, W, Cr, Mo and Al, Mg and Si, wherein the Cu is uniformly dispersed in the primary phase grain, and the contents of the accessory components with respect to 100 molar parts of the primary component are: Re: 0.1 to 1.5 molar parts, M: 0.1 to 0.6 molar parts, Mg: 0.1 to 1.5 molar parts, and Si: 0.1 to 2.0 molar parts.