发明名称 Dielectric ceramic composition and monolithic ceramic capacitor using the same
摘要 <p>A dielectric ceramic composition comprising (1) 100 parts by weight of a main component represented by compositional formula: äBaOüm.TiO2+ alpha Re2O3+ beta MnO wherein Re2O3 is at least one of Eu2O3, Gd2O3, Tb2O3, Dy2O3, Ho2O3, Er2O3, Tm2O3, and Yb2O3; 0.0005≤alpha≤0.027; 0.002≤beta≤0.054; beta / alpha≤5; and 1.000<m≤1.035, and, as a secondary component, (2) 0.2 to 3.0 parts by weight of an Li2O-(Si,Ti)O2-M<2>-based oxide component (wherein M<2> is at least one of Al2O3 and ZrO2) and a monolithic ceramic capacitor using the composition are disclosed. The monolithic ceramic capacitor has a dielectric constant of 3000 or higher and a CR product of 6000 M OMEGA . mu F or more at room temperature or 2000 M OMEGA . mu F or more at 125 DEG C, excellent weathering performance in loading in high temperature or high humidity, and excellent dielectric strength and satisfies the B characteristics specified by JIS (Japanese Industrial Standards) and the X7R characteristics specified by EIA.</p>
申请公布号 EP0824261(B1) 申请公布日期 2004.04.21
申请号 EP19970113519 申请日期 1997.08.05
申请人 MURATA MANUFACTURING CO., LTD. 发明人 MIZUNO, SHINOBU;TANAKA, HIDEHIKO
分类号 H01G4/12;(IPC1-7):H01G4/12 主分类号 H01G4/12
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