Electrical resistors – Resistance value responsive to a condition – Current and/or voltage
Patent
1989-03-06
1990-03-06
Reynolds, Bruce A.
Electrical resistors
Resistance value responsive to a condition
Current and/or voltage
H01C 710
Patent
active
049069640
ABSTRACT:
An improved voltage non-linear sintered resistor which includes zinc oxide, bismuth oxide and at least one metal oxide additive selected from the group consisting of antimony oxide, silicon oxide, and mixtures thereof. The sintered resistor includes at least two crystalline phases including .alpha. and .delta. crystalline phases of bismuth oxide and has a quantity ratio of .alpha./.delta. crystalline phases of bismuth oxide of about 0.1-0.8.
REFERENCES:
patent: 4041436 (1977-08-01), Rouchich et al.
patent: 4042535 (1977-08-01), May
Imai Osamu
Sato Ritsu
Lateef M. M.
NGK Insulators Ltd.
Reynolds Bruce A.
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