Voltage-dependent non-linear resistance ceramic composition

A voltage-dependent non-linear resistance ceramic composition consisting essentially of:

• 92.000-99.996 mol % of SrTiO.sub.3, Sr.sub.1-x Ba.sub.x TiO.sub.3 (0.001.ltoreq.x.ltoreq.0.300) or Sr.sub.1-x Ca.sub.x TiO.sub.3 (0.001.ltoreq.x.ltoreq.0.300) as host material wherein the ratio of Sr/Ti is 1.05-0.95,
• 0.001-2.000 mol % of Y.sub.2 O.sub.3,
• 0.001-2.000 mol % of Co.sub.2 O.sub.3,
• 0.001-1.000 mol % of CuO, and
• 0.001-3.000 mol % of at least one metal oxide selected from the group consisting of Ag.sub.2 O and Al.sub.2 O.sub.3.

A voltage-dependent non-linear resistance ceramic composition consisting essentially of:

• 95.00-99.997 mol % of Sr.sub.1-x Ba.sub.x TiO.sub.3 (0.001.ltoreq.x.ltoreq.0.300)
• 0.001-2.000 mol % of Y.sub.2 O.sub.3,
• 0.001-2.000 mol % of Co.sub.2 O.sub.3, and
• 0.001-1.000 mol % of CuO.

A voltage-dependent non-linear resistance ceramic composition consisting essentially of:

• 92.000-99.996 mol % of Sr.sub.1-x Ba.sub.x TiO.sub.3 (0.001.ltoreq.x.ltoreq.0.300),
• 0.001-2.000 mol % of Y.sub.2 O.sub.3,
• 0.001-2.000 mol % of Co.sub.2 O.sub.3,
• 0.001-1.000 mol % of CuO, and
• 0.001-3.000 mol % of at least one of Ag.sub.2 O and Al.sub.2 O.sub.3.

A voltage-dependent non-linear resistance ceramic composition consisting essentially of:

• 95.000-99.997 mol % of Sr.sub.1-x Ca.sub.x TiO.sub.3 (0.001.ltoreq.x.ltoreq.0.300),
• 0.001-2.000 mol % of Y.sub.2 O.sub.3,
• 0.001-2.000 mol % of Co.sub.2 O.sub.3, and
• 0.001-1.000 mol % of CuO.

A voltage-dependent non-linear resistance ceramic composition consisting essentially of:

• 92.000-99.996 mol % of Sr.sub.1-x Ca.sub.x TiO.sub.3 (0.001.ltoreq.x.ltoreq.0.300),
• 0.001-2.000 mol % of Y.sub.2 O.sub.3,
• 0.001-2.000 mol % of Co.sub.2 O.sub.3,
• 0.001-1.000 mol % of CuO, and
• 0.001-3.000 mol % of at least one of Ag.sub.2 O and Al.sub.2 O.sub.3.

A voltage-dependent non-linear resistance ceramic composition consisting essentially of:

• 93.000-99.995 mol % of SrTiO.sub.3 having Sr/Ti ratio of 1.050-0.950,
• 0.001-2.000 mol % of Y.sub.2 O.sub.3,
• 0.001-2.000 mol % of Co.sub.2 O.sub.3,
• 0.001-1.000 mol % of CuO, and
• 0.001-1.000 mol % of one oxide selected from the group consisting of BaO, SiO.sub.2, MgO and MnO.sub.2.

A voltage-dependent non-linear resistance ceramic composition consisting essentially of:

• 91.000-99.994 mol % of SrTiO.sub.3 having Sr/Ti ratio of 1.050-0.950,
• 0.001-2.000 mol % of Y.sub.2 O.sub.3,
• 0.001-2.000 mol % of Co.sub.2 O.sub.3,
• 0.001-1.000 mol % of CuO, and
• 0.001-1.000 mol % of Ag.sub.2 O,
• 0.001-1.000 mol % of one oxide selected from the group consisting of BaO, SiO.sub.2, MgO and MnO.sub.2, and
• 0.001-1.000 mol % of at least one oxide NiO, MoO.sub.3, BeO, Fe.sub.2 O.sub.3, Li.sub.2 O, Cr.sub.2 O.sub.3, PbO, CaO, TiO.sub.2, P.sub.2 O.sub.5, Sb.sub.2 O.sub.3, Al.sub.2 O.sub.3 and V.sub.2 O.sub.5.