| 摘要 |
PROBLEM TO BE SOLVED: To provide a manufacturing method for a barium plumb titanate-based positive temperature coefficient thermistor compound with a small contraction ratio without a variation in resistance. SOLUTION: Barium plumb titanate-based compound containing a semiconductor element, (Ba1-x-yPbxCay)TiO3 , where 0.2<=x<=1.0 and 0<=y<=0.2, is molded and baked after PbO of 0.1 to 10.0 mol.% is added thereto. A positive temperature coefficient thermistor compound includes preferably B2 O3 of 1 to 4.5 mol.% and/or GeO2 of 0.1 to 4.0 mol.%. In addition, SiO2 of 0.01 to 3.0 mol.% and/or Mn of 0.01 to 0.15 mol.% may be added thereto. |
