| 摘要 |
PURPOSE: A dielectric composition for a ceramic capacitor is provided to have a high dielectric rate and satisfy an electric performance such as a temperature feature and a dielectric loss coefficient. CONSTITUTION: The dielectric composition for a ceramic capacitor includes a barium titanate(BaTiO3) of 87.20-92.80 weight %, a magnesium titanate(MgTiO3) of 0.40-2.70 weight %, a bismuth oxide(BiO) of 5.60-5.80 weight %, a tin oxide(SnO) of 0.01-3.70 weight %, a titanium oxide(TiO) of 0.90-3.00 weight %, and a niobium oxide(NbO) of 0.50-1.00 weight %. The bismuth oxide(BiO) and the tin oxide(SnO) produces Bi2(SnO3)3 to improve a temperature feature of the dielectric composition for a ceramic capacitor. The dielectric composition for a ceramic capacitor satisfies a dielectric rate of 1,400-1,600, a temperature feature of Y5P, and a dielectric loss coefficient less than 1.5%.
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