The main parameters of the NTC thermistor

NTC thermistor is a kind of typical sensitive element, has a certain application in multiple industries. The parameters of the NTC thermistor is more, in addition to the nominal value, the basic indicators such as power rating and allowable deviation, and some users have to master the main parameters. Engineering today is for everybody to introduce specific main parameters of NTC thermistor, hope you can help to you.

main parameters of the NTC thermistor:

1) Measuring power: refers to the provisions of the environmental temperature, resistance caused by measuring the power heating resistance changes less than 0. 1% when the consumed power.

2) Material constant: thermistor is reactive thermal sensitivity of indicators. Generally, the greater the value, the higher the sensitivity and the resistivity of the thermistor.

3) Thermistor temperature coefficient of resistance: it means under the condition of zero power, its every 1 ℃ temperature change caused by the relative change of the resistance value.

4) Thermal time constant: refers to the thermal inertia of thermistor. Namely in the condition of reactive power, when the environment temperature mutations, resistance temperature by the difference between the initial value changes to the final temperature of 63. The time needed for 2%.

5) Dissipation factor: refer to the thermistor temperature increase dissipation power by 1 ℃.

6) Switch temperature: refers to the minimum zero power resistance of thermistor resistance when two times the corresponding temperature.

7) The highest working temperature: refers to the thermistor under the condition of the specified standards, long-term continuous work is allowed to take the highest temperature.

8) Nominal voltage: refers to the voltage regulator with thermistor under the regulation of temperature, and the nominal voltage value of the current work.

9) Working current: refers to the voltage regulator with thermistor in the provisions of the current value in the normal working state.

10) Voltage range: refers to the voltage regulator with thermistor in the specified range of environment temperature range value of the voltage stability.

11) Maximum voltage: refers to the provisions of the environmental temperature, the normal work of the thermistor allows continuous when applying the highest voltage value.

12) Insulation resistance: refers to the provisions of the environmental condition, with the resistance of the thermistor resistance value between the insulation shell.

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