Dielectric ceramic and dielectric filter having the same

A dielectric ceramic, comprising:

• a main component, molar ratios α, β, and γsatisfying the following expressions when a composition formula of the main component is represented as αZrO2.βSnO2.γTiO2:
• 0.240≦α≦0.470
• 0.040≦β≦0.200
• 0.400≦γ≦0.650
• α+β+γ=1;
• Mn, a content of Mn in terms of MnO2 being greater than or equal to 0.01% by mass and less than 0.1% by mass with respect to 100% by mass of the main component,
• wherein a content of P in terms of P2O5 being less than or equal to 0.7% by mass but not including 0% by mass with respect to 100% by mass of the main component.

A dielectric ceramic, comprising:

• a main component, molar ratios α, β, and γ satisfying the following expressions when a composition formula of the main component is represented as αZrO2.βSnO2.γTiO2:
• 0.240≦α≦0.470
• 0.040≦β≦0.200
• 0.400≦γ≦0.650
• α+β+γ=1;
• Mn, a content of Mn in terms of MnO2 being greater than or equal to 0.01% by mass and less than 0.1% by mass with respect to 100% by mass of the main component;
• and
• at least one of oxides of Mo, Y, and Bi,
• wherein a total content of Mo, Y, and Bi in terms of MoO3, Y2O3, and Bi2O3 being less than or equal to 0.1% by mass but not including 0% by mass with respect to 100% by mass of the main component.