Dielectric ceramic composition and ceramic electronic part with same

A ceramic electronic part formed with a dielectric ceramic composition comprising a crystal structure phase of a tungsten bronze form, one titanate-barium phase or more titanate-barium phases selected from Ba.sub.2 Ti.sub.9 O.sub.20, BaTi.sub.2 O.sub.5, BaTi.sub.4 O.sub.9 and Ba.sub.4 Ti.sub.13 O.sub.30, and a fine crystal phase comprising an oxide of each of at least B, Ag and Mn;

• wherein:
• said crystal structure phase of the tungsten bronze form comprises a compound oxide of Ba, Nd and Ti as a basic component and contains an oxide of at least Bi, Pb, Zn and Si;
• a rate of said crystal structure phase of the tungsten bronze form, when represented in X% by mole, is:
• X=80% to 98% by mole, assuming that the rate of said titanate-barium phase is represented in Y% by mole and that the total of X% and Y% by mole is set to 100% by mole;
• a rate of a Bi oxide contained in said crystal structure phase of the tungsten bronze form is from 1% to 5% by mole;
• a rate of a Pb oxide contained therein is from 1% to 6% by mole;
• a rate of a Zn oxide contained therein is from 2% to 11% by mole;
• and a rate of a Si oxide contained therein is from 2% to 11% by mole;
• and
• a rate of a B oxide forming said fine crystal phase is from 1% to 6% by mole with respect to a total amount of said crystal structure phase of the tungsten bronze form and said titanate-barium phase;
• a rate of a Ag oxide forming said fine crystal phase is from 1% to 6% by mole with respect thereto;
• and a rate of a Mn oxide forming said fine crystal phase is from 1% to 5% by mole with respect thereto.