Patent ID: 8305732

Claim:
A dielectric ceramic, comprising: crystal grains containing barium titanate as a main crystal component; and a grain boundary phase formed between or among the crystal grains, wherein with respect to one mole of barium constituting the barium titanate, the dielectric ceramic contains: magnesium equivalent to 0.01 to 0.06 mole of MgO; rare earth element (RE) equivalent to 0.0007 to 0.03 mole of REO 3/2 where rare earth element comprises at least one element selected from gadolinium, terbium, dysprosium, holmium and erbium; and manganese equivalent to 0.0002 to 0.03 mole of MnO, with respect to 100 parts by mass of barium titanate, the dielectric ceramic further contains: ytterbium equivalent to 3.6 to 52.1 parts by mass of Yb 2 O 3 , and the average grain size of the crystal grains is 0.05 μm to 0.2 μm.