Thermistor Parameter Description
Thermistor main parameters:In addition to the nominal resistance, rated power and allowable deviation and other basic indicators,As well as the following indicators parameters:
1) Measuring power (W):Refers to the specified ambient temperature,When the resistor is heated by the measuring power supply,And cause resistance changes,Not more than 0.1% of the power consumed.
2) Material constant:Is the indicator of the thermal sensitivity of the thermistor.usually,The higher the value, the higher the sensitivity and the resistivity of the thermistor.
3) Resistance temperature coefficient:Indicating that the thermistor under zero power conditions,Its temperature for each change 1 ℃,The relative amounts of change in resistance value caused.
4) Thermal time constant:It refers to the thermal inertia of the thermistor.That is, in the reactive power state,When the ambient temperature changes,The time required for the temperature of the resistor element to change from the initial value to 63.2% of the final temperature difference.
5) Dissipation factor:
Refers to the temperature of the thermistor for each additional 1 ° C, the power dissipated.
6) Switching temperature:
Refers to the zero resistance of the thermistor,When the minimum resistance value is twice,The corresponding temperature.
7) Maximum operating temperature:
Refers to the thermistor under the specified standard conditions,Long-term continuous work allowed to withstand the maximum temperature.
8) Nominal voltage:
Refers to the regulator with a thermistor,
At the specified temperature,
The voltage corresponding to the nominal operating current.
9) Operating current:
Refers to the regulator with a thermistor,In the normal working state of the specified current value.
10) Voltage regulation range:
Refers to the regulator with a thermistor,Within the specified ambient temperature range,Stable voltage range value.
11) Maximum voltage:
Refers to the specified ambient temperature,The maximum voltage allowed for continuous operation of the thermistor.
12) Insulation resistance:
Refers to the specified environmental conditions,The resistance value between the resistor and the thermistor insulating housing.
1) Measuring power (W):Refers to the specified ambient temperature,When the resistor is heated by the measuring power supply,And cause resistance changes,Not more than 0.1% of the power consumed.
2) Material constant:Is the indicator of the thermal sensitivity of the thermistor.usually,The higher the value, the higher the sensitivity and the resistivity of the thermistor.
3) Resistance temperature coefficient:Indicating that the thermistor under zero power conditions,Its temperature for each change 1 ℃,The relative amounts of change in resistance value caused.
4) Thermal time constant:It refers to the thermal inertia of the thermistor.That is, in the reactive power state,When the ambient temperature changes,The time required for the temperature of the resistor element to change from the initial value to 63.2% of the final temperature difference.
5) Dissipation factor:
Refers to the temperature of the thermistor for each additional 1 ° C, the power dissipated.
6) Switching temperature:
Refers to the zero resistance of the thermistor,When the minimum resistance value is twice,The corresponding temperature.
7) Maximum operating temperature:
Refers to the thermistor under the specified standard conditions,Long-term continuous work allowed to withstand the maximum temperature.
8) Nominal voltage:
Refers to the regulator with a thermistor,
At the specified temperature,
The voltage corresponding to the nominal operating current.
9) Operating current:
Refers to the regulator with a thermistor,In the normal working state of the specified current value.
10) Voltage regulation range:
Refers to the regulator with a thermistor,Within the specified ambient temperature range,Stable voltage range value.
11) Maximum voltage:
Refers to the specified ambient temperature,The maximum voltage allowed for continuous operation of the thermistor.
12) Insulation resistance:
Refers to the specified environmental conditions,The resistance value between the resistor and the thermistor insulating housing.
