Semiconductor ceramic composition and PTC thermistor
Abstract:
A semiconductor ceramic composition including a compound represented by the following general formula (1) as a main component. (BavBixAyREw)m(TiuTMz)O3  (1) (wherein, A represents both elements of Na and K; RE is at least one element selected from the group consisting of Y, La, Ce, Pr, Nd, Sm, Gd, Dy and Er; and TM is at least one element selected from the group consisting of V, Nb and Ta.) 0.01≤x≤0.15  (2) x≤y≤0.3  (3) 0≤(w+z)≤0.01  (4) v+x+y+w=1  (5) u+z=1  (6) 0.950≤m≤1.050  (7) further, 0.001 mol to 0.055 mol of Ca is included and the ratio of Na/(Na+K) is 0.1 or more and less than 1.
Public/Granted literature
Information query
Patent Agency Ranking
0/0