Ostrolenk, Faber, Gerb & Soffen
Non-reduction type dielectric ceramic composition
 A non-reduction type dielectric ceramic composition, which contains 100 parts by weight of (Ca.sub.1-x Sr.sub.x).sub.m (Zr.sub.1-y Ti.sub.y)O.sub.3 -zMnO.sub.2 -wSiO.sub.2 serving as a main component and 2 to 30 parts by weight of an additive which is a(LiO.sub.1.kappa. -RO)-(1-a)(BO.sub.3/2 -SiO.sub.2), where RO is at least one type of SrO, BaO and CaO, and a is not less than 0.01 nor more than 0.8 in terms of a molar ratio, and satisfies the following relationships in the composition formulas of the above described main component and additive: x, y and m satisfy the following relationships in terms of a molar ratio: PA1 x.ltoreq.x.ltoreq.1.0 PA1 0.ltoreq.y.ltoreq.0.2 PA1 0.9.ltoreq.m.ltoreq.1.1 and z and w satisfy the following relationships when the amount of (Ca.sub.1-x Sr.sub.x).sub.m (Zr.sub.1-y Ti.sub.y)O.sub.3 is 100% by weight: PA1 0.1.ltoreq.z.ltoreq.5% by weight PA1 0.3.ltoreq.w.ltoreq.8% byw weight. 
Murata Manufacturing Co., Ltd.
C
C04B
inventional
Yoshiaki Harufumi Yoshihiro Shinichi
Mori Mandai Yoshimoto Ohkubo