Thermistor composition

Abstract

A thermistor composition that is in use within a range of room temperature to 400° C. has the general formula Mn2−a−b−cZnaNibFec+dCo1−dO4, wherein 0.1≦a<1, 0≦b<1, 0<c<1, 0≦d<1 and 0.1<a+b<1. A preferred thermistor composition has a B constant (B25/85) within a range of 3,300-4,960 K, a resistivity (ρ25) within a range of 400-88,000 Ω·cm and a resistance variation rate (ΔR25) of 2% or less. The composition is suitable for a thermistor or a thermistor device using the same.

Dependencies are inferred from the claim text.