Patent ID: 8008222

Claim:
A dielectric ceramic composition comprising: a main component expressed by a general formula: (Ba 1-x-y Sr x Ca y ) m (Ti 1-z Zr z )O 3 , a first subcomponent comprising Mg oxide, a second subcomponent comprising at least one oxide selected from oxides of Mn and Cr, a third subcomponent comprising R oxide, wherein R is selected from at least one of Y, La Ce, Pr, Nd, Sm, Gd, Tb, Dy, Ho, and Yb, and a fourth subcomponent comprising an oxide including Si, wherein the general formula shows 0.20≦x≦0.40, 0≦y≦0.20, 0≦z≦0.30, and 0.950≦m≦1.050, wherein ratios of the respective subcomponents with respect to 100 moles of said main component are the first subcomponent: 0.5 to 5 moles (in terms of element), the second subcomponent: 0.05 to 2 moles (in terms of element), the third subcomponent: 1 to 8 moles (in terms of element), the fourth subcomponent: 0.5 to 5 moles (in terms of an oxide or a complex oxide), and within a temperature range of −25 to 105° C., a capacitance change rate on the basis of capacitance at 25° C., with respect to slope “a” of a line which shows capacity temperature characteristic on the basis of capacitance at 25° C., is within −15 to +5%, and said slope “a” is −7000 to −3000 ppm/° C.