| 摘要 |
A dielectric ceramic includes a main component and a minor component. The main component includes a BaTi4O9 crystal phase and a Ba2Ti9O20 crystal phase, is represented by BaO.xTiO2, has a molar ratio x of TiO2 to BaO of 4.6 to 8.0, and in X-ray diffraction, and has an X-ray diffraction peak intensity ratio I29/I14 of a maximum diffraction peak intensity (I14) of the BaTi4O9 crystal phase to a maximum diffraction peak intensity (W of the Ba2Ti9O20 crystal phase of 1 or more. The minor component includes a boron oxide and a copper oxide, in which the boron oxide content is in the range of 0.5 to 5.0 parts by mass with respect to 100 parts by mass of the main component, and the copper oxide content is in the range of 0.1 to 3.0 parts by mass with respect to 100 parts by mass of the main component.
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