| 摘要 |
A dielectric ceramic composition comprising at least a main component containing a dielectric oxide of a composition expressed by {(Sr<SUB>1-x</SUB>Ca<SUB>x</SUB>)O}<SUB>m</SUB>.(Ti<SUB>1-y</SUB>Zr<SUB>y</SUB>)O<SUB>2 </SUB>and a first subcomponent containing at least one type of compound selected from oxides of V, Nb, W, Ta, and Mo and/or compounds forming these oxides after firing, wherein the symbols m, x, and y showing the molar ratio of the composition in the formula contained in the main component are in relations of 0.94<m<1.08, 0<=x<=1.00, and 0<=y<=0.20 and the ratio of the first subcomponent with respect to 100 moles of the main component, which is converted to the metal element in the oxide, is 0.01 mole<=first subcomponent<2 moles. According to this dielectric ceramic composition, it is possible to obtain a superior resistance to reduction at the time of firing, obtain a superior capacity-temperature characteristic after firing, and improve the accelerated life of the insulation resistance.
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