| 摘要 |
A dielectric ceramic composition comprising a main component expressed by a general formula (Ba1−x−ySrxCay)m(Ti1−zZrz)O3, Mg oxide, oxides of at least one kind selected from Mn and Cr, rare earth oxide, an oxide including Si and a composite oxide including Ba, Sr and Zr. The general formula shows that 0.20≦̸x≦̸0.40, 0≦̸y≦̸0.20, 0≦̸z≦̸0.30, and 0.950≦̸m≦̸1.050. Within a temperature range of −25 to 105° C., a capacitance change rate on the basis of a capacitance at 25° C. is within −15 to +5% with respect to slope “a” which shows capacity temperature characteristic on the basis of the capacitance at 25° C., and the slope “a” is −5500 to −1800 ppm/° C. By the present invention, a dielectric ceramic composition which is able to set the capacitance change rate to a predetermined range with respect to absolute value of capacity temperature characteristic within a wide temperature range even when the absolute value is large can be obtained.
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