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Description:

RTD
Electric thermo meter, electric calendar, electric clocktemperature presentation and electric gifts.

RTD

(1) Appearance and Dimensions

  Unit:mm

Φ:0.2~0.6, specific dimensions may be made asrequired by customers.

(2)Features

• Epoxy enclosed, small in volume, with quickresponse time and high sensitivity.

• Stable in working, high in reliability andprecision.

 

• Consistent and easy to interchange.

(3)Purpose

• Precision temperature measurement.

• Temperature compensation for electric circuits.

• Temperature measurement and control circuit.

(4)Application

• Electric thermo meter, electric calendar, electric clocktemperature presentation and electric gifts.

• Cooling and heating equipment, electric heating constantappliances.

• Automobile electric temperature measurement and controlcircuit.

• Temperature sensor and temperature instrument.

• Medical electrical equipment and electric toiletfacilities.

(5)Description of Product Types andSpecifications

 1. KPD —— Abbreviations for KePengDa.

2. MF -—— Indicates negative temperature (NTC) coefficientthermistor.

3. 5A —— Temperature measurement type epoxy enclosedthermistor.

4. 103 —— Nominal resistance of thermistor, e.g. 103 indicatesthat the nominal resistance of the thermistor is 10 *103 (Ω).

5. G —— Resistance error (precision), e.g. G indicates the error(precision) of the thermistors is ± 2%.

6. 360 —— Material factor B25/50 value of thermistor,e.g.360 indicates the material factor B25/50 value ofthe thermistor is 360*10K.

7. F —— B25/50 error (precision), e.g. F indicatesthe B25/50 error (precision) of the thermistor is ±1%.

Note :R25 precision :F(±1%), G(±2%),H(±3%), J(±5%), K(±10%).
                  B25/50precision :F(±1%), G(±2%), H(±3%).    

 

(6)Main Technical Parameters

Parameters	Parameter range	Test conditions
R25(nominal resistance)	500 Ω~ 200K Ω	Constant temperature 25 °C± 0.05 °C
Allowed R25 deviation (%)	± 1 , ± 2 , ± 3 , ± 5 , ± 10	Constant temperature 25 °C± 0.05 °C
B25/50(material coefficient) (thermal sensitive index)	3000 ~ 5000K	Constant temperature 25 °C± 0.05 °C Constant temperature   50 °C± 0.05 °C
Allowed B25/50 deviation(%)	± 1 , ± 2 , ± 3	Constant temperature 25, °C± 0.05 °C Constant temperature 50 °C± 0.05 °C
δ(dissipation factor)	≥ 0.7mw/ °C	In still air
τ(thermal time constant)	≤ 3.4S	In still air
TA(working temperature)	-40 °C ~ 125 °C
PN(rated power)	50 mw	In maximum working temperature