| 摘要 |
PROBLEM TO BE SOLVED: To lower the clamping voltage of a zinc oxide voltage nonlinear resistive element in a high-current region.SOLUTION: A voltage nonlinear resistive element 10 includes: a resistor 14 containing a joined body 12 in which a zinc oxide ceramic layer 12a composed mainly of zinc oxide and having a volume resistivity of less than 1.0×10&OHgr;cm is joined to a rare-earth metal oxide layer 12b composed mainly of a rare-earth metal oxide; and a pair of electrodes 16 and 18 formed on the resistor 14 such that an electrically conductive path passes through an interface between the zinc oxide ceramic layer 12a and the rare-earth metal oxide layer 12b. In the element 10, the zinc oxide ceramic layer 12a of the joined body 12 has a lower volume resistivity than before. This can result in a lower clamping voltage in a high-current region than before. |
