| 摘要 |
<P>PROBLEM TO BE SOLVED: To obtain a current-voltage non-linear resistor which can achieve miniaturization of an overcurrent protector such as a lightening arrester and a surge absorber, has high resistance value and excellent thermal stability, and is excellent in non-linear resistant characteristics and life characteristics. <P>SOLUTION: The resistor is configured of a sintered body principally containing zinc oxide (ZnO), containing as sub-components; bismuth (Bi), cobalt (Co), manganese (Mn), antimony (Sb) and nickel (Ni) which are converted into oxide expressions of 0.3-1.0 mol% Bi<SB>2</SB>O<SB>3</SB>, 0.3-1.5 mol% Co<SB>2</SB>O<SB>3</SB>, 0.1-2 mol% MnO, 0.5-2.5 mol% Sb<SB>2</SB>O<SB>3</SB>and 0.5-3 mol% NiO respectively, and having a relation of relative ratios of bismuth to antimony and of manganese to cobalt which is converted into an oxide expression represented by 0.15<Bi<SB>2</SB>O<SB>3</SB>/Sb<SB>2</SB>O<SB>3</SB><1.0 and 0.3<MnO/Co<SB>2</SB>O<SB>3</SB><3.5. <P>COPYRIGHT: (C)2008,JPO&INPIT |
