COMPOUND FOR RESISTOR UNIT; RESISTOR UNIT AND ITS MANUFACTURING TECHNIQUE Russian patent published in 1998 - IPC

FIELD: electrical engineering. SUBSTANCE: compound for electrical material incorporates zinc oxide as primary component. It also contains at least one of rare-earth elements in the amount of 0.01-3.0 mole percent for oxide of formula R₂O₃, where R is rare-earth element, and aluminum in the amount of 0.0005-0.005 mole percent for oxide of formula Al₂O₃. EFFECT: improved varistor voltage throughout entire range of currents without impairing flatness of voltage versus current characteristic. 8 cl, 11 dwg