| 摘要 |
Disclosed is a monolithic ceramic capacitor comprising dielectric ceramic layers made from a material which comprises an essential component of (1- alpha - beta ){BaO}m.TiO2+ alpha Re2O3+ beta (Mn1-x-yNixCoy)O (0.0025</= alpha </=0.025; 0.0025</= beta </=0.05; beta / alpha </=4; 0</=x<1.0; 0</=y<1.0; 0</=x+y<1.0; 1.000<m</=1.035) and from about 0.5 to 5.0 mols, relative to 100 mols of the essential component, of a side component MgO, and containing from about 0.2 to 3.0 parts by weight, relative to 100 parts by weight of said components, of an oxide of the type of SiO2-TiO2-MO. The capacitor is low-priced and can be small-sized, while having large-capacity. It has a dielectric constant of 3000 or more, and has a high insulation resistance of 6000 M OMEGA . mu F or more and 2000 M OMEGA . mu F or more at room temperature and 125 DEG C., respectively. It has temperature-dependent capacitance that satisfies the B-level characteristic standard stipulated in the JIS Standard and the X7R-level characteristic standard stipulated in the EIA Standard, and has good weather resistance even in high-temperature load and high-humidity load conditions.
|
