Basic constant and characteristics of NTC thermistors

Temperature coefficient of resistance
The temperature coefficient of resistance can be approximated by the equation (3).Dissipation constant
The relationship between the power applied to a thermistor at ambient temperature T0 and the consequent temperature rise
(T1-T0) due to self-heating can be approximated by the equation (4). Where is dissipation constant, is normally measured in

1.The electric characteristics of NTC thermistors at zero power.
2.The electric characteristics of NTC thermistors under loading.
3.Temperature - Time characteristics.
R1 = R0 expB (1/T1-T0) (1)
B-constant
NTC thermistor is resistor with high negative temperature coefficient of resistance. The relationship between resistance and
temperature can be approximated by the equation (1). Where R0 is initial resistance of the thermistor at temperature T0 measured in
degrees Kelvin and R1 is resistance at temperature T1.
B is constant for a given thermistor, can be approximated by the equation (2).