| 简介 |
A ceramic capacitor dielectric material includes BaTiO3, BaZrO3, SrTiO3, MgCO3, SiO2, and at least one compound selected from transition element and rare earth element. The amount of the BaTiO3 in the ceramic capacitor dielectric material is 40-80 mol %; the amount of the BaZrO3 is 20-40 mol %; and the amount of the SrTiO3 is smaller than or equal to 20 mol %. The permittivity of the ceramic capacitor dielectric material is larger than 350, and the dielectric loss is lower than 0.5%. Moreover, the resistivity can reach 1012 Ω-cm under room temperature, and further reach 1011 Ω-cm at 125° C. Besides that, the performance of the capacitance change rate of the ceramic capacitor dielectric material under DC bias is excellent, thus the ceramic capacitor dielectric material can fulfill the X7T dielectric properties of EIA. |
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