Patent ID: 6960547

Claim:
A dielectric ceramic composition comprising: a polycrystalline solid solution comprising barium titanate as a primary component and which is represented by the formula (Ba 1−x Ca x ) a (Ti 1−y Zr y ) b O 3 in which 0<x≦0.25 and 0<y≦0.25 and 960≦a/b≦1.035, and with respect to 100 parts by weight of the primary component: a Y component in the form of Y 2 O 3 in an amount in the range of more than zero to about 5 parts by weight; a Mg component in the form of MgO in an amount in the range of more than zero to about 2 parts by weight, and an Al component in the form of Al 2 O 3 in an amount in the range of more than zero to about 2.5 parts by weight.