| 简介 |
Disclosed is a laminated ceramic capacitor having a dielectric ceramic, wherein the dielectric ceramic is mainly composed of barium titanate and contains magnesium, manganese, and first and second rare earth elements as described in the description at a proportion as described in the description. The dielectric ceramic further contains a first crystal particle having a calcium content of 0.2 at.% or less and a second crystal particle having a calcium content of 0.4 at.% or more. Each of the first and second crystal particles has an average particle diameter of 0.18 to 0.3 µm. The average particle diameter of the first crystal particle is smaller by 0.05 µm or more than that of the second crystal particle. When the number of the first crystal particles and the number of the second crystal particles both found in an area of 3 µm × 3 µm on the polished surface of the dielectric ceramic are taken as "a" and "b", respectively, the b/(a+b) ratio is 0.5 to 0.8. |
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