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Description:

Thermistor
Air conditioner (heat and cool) and related equipment.

Thermistor

1) Dimensions and sizes

Unit:mm

 

(2) Features

• Glass sealed packaging with firm structure andgood heat resistance, applicable in severe environment.

• High precision resistance and B values high reliability andstability.

• Fast response and high sensitivity.

• Good interchangeability, good consistency, highperformance/price ratio.

• Small size and light weight, suitable for auto and massproduction.

 

(3) Applications

• Temperature measurement.

• Temperature control.

• Temperature compensation.

 

(4) Applications

• Air conditioner (heat and cool) and related equipment.

• Temperature measurement and control and thermal protectioncircuits in various family appliances, such as air conditioner,refrigerator, electromagnetic oven, bread toaster, bake oven,electric roaster, microwave oven, electric fan, soybean milk maker,electric water heater, rice cooker, sterilizing cabinet, waterdispenser and lighting appliances .

• Temperature measurement and control circuit in the equipmentfor industrial and agricultural, medical, meteorological purpose,environmental protection and food processing.

• Automatic office appliances.

• Temperature compensation circuits such as instrument andcoils, automobile circuit, integrated circuit module, transistoramplifying circuit, quartz crystal oscillator and thermocouple.

 

(5) Product Types and Specifications

 

1. KPD —— Abbreviations for KePengDa.

2. MF —— Negative temperature coefficient ofthermistor.

3. 58 —— Temperature measurement type glass sealedthermistor.

4. 104 —— Nominal resistance of thermistor, e.g.104 indicates that the nominal resistance of the thermistor is 10 ×104(Ω).

5.  J —— Resistance error (precision) ofthermistor, e.g. J indicates the nominal resistance error of thethermistor is ± 5%.

6. 399 —— B25/50 value of thermistor,e.g. 399 indicates the thermistors material factorsB25/50 value is 399*10K.

7. F —— B25/50 error (precision) ofthermistor, e.g. F indicates the thermistors B25/50error (precision) is ± 1%.

(6) Main Technical Parameters

Parameters	Parameter range	Test conditions
R25nominal resistance	500 Ω~1M Ω	Constant temperature 50°C± 0.05 °C
Allowed R25 deviation(%)	± 1 , ± 2 , ± 3 ± 5 , ± 10	Constant temperature 50°C± 0.05 °C
B25/50(material coefficient) (thermalsensitive index )	2500~5000K	Constant temperature 25 °C± 0.05 °C Constant temperature 50°C± 0.05 °C
Allowed B25/50 deviation(%)	± 0.05 , ± 1 , ± 2	Constant temperature 25 °C± 0.05 °C Constant temperature 50°C± 0.05 °C
(dissipation factor)	≥ 1.5 mw/ °C	In still air
(thermal time constant)	≤ 17S	In still air
TA(working temperature)	-55 °C~ 250 °C
PN(rated power)	50 mw	In maximum working temperature