| 摘要 |
The following composition and device are provided: a barium titanate-based semiconductor ceramic composition which can be used for PTC thermistors for temperature sensors and which has characteristics, including a linear characteristic, advantageous for such PTC thermistors and a barium titanate-based semiconductor ceramic device. A barium titanate-based semiconductor ceramic composition is represented by the formula (Ba (1-v-w) Me v Sr w )Ti x O 3 + ySiO 2 , wherein Me is at least one selected from the group consisting of Er, Sm, Ce, and La and v, w, x, and y are within the ranges given by the inequalities 0.001 ‰¤ v ‰¤ 0.005, 0.42 ‰¤ w ‰¤ 0.49, 0.99 ‰¤ x ‰¤ 1.03, and 0.002 ‰¤ y ‰¤ 0.030, respectively.
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