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RTTA71 Thermopile Temperature Sensor with High precision NTC

  • • Non-contact temperature measuring;
  • • Infrared thermometer, such as ear temperature and forehead temperature measurement;
  • • TO-46 metal package
  • • High filter transmittance
  • • High precision NTC

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  • Principle Introduction
Principle Introduction:
 RTTA71 thermopile sensor is based on MEMS technology, consists of hundreds of thermocouples connected in series. Using Seebeck principle, when there is a temperature difference between the target and the environment, the sensor gives the corresponding voltage output, therefore detecting the existence of the target or the temperature of the target.
Applications :
Non-contact temperature measuring;

Infrared thermometer, such as ear temperature and forehead temperature measurement;

Household appliances (Microwave oven, hair dryers, air conditioners etc), intelligent temperature induction and control system.
Technical parameters :

Tips:For more parameter information, please refer to the latest manual provided by salesman.

 

Parameter

Value

Unit

Remarks

Chip size

1.35×1.35 

mm

/

Field of view

95 

Degree

Above 50%

Thermopile resistor

76±10 

KΩ

25℃,1V

Noise voltage

38

nV/Hz1/2

25℃

Noise equivalent power

0.23 

nW/Hz1/2

500K, 1Hz, 25℃

Response rate

160±40

V/W

500K, 1Hz, 25℃

Temperature coefficient of resistance

0.06

%/℃

25℃~75℃

Time constant

≤13 

ms

 

Detection rate

1.5 ×108 

cmHz1/2/W

500K, 1Hz, 25℃

NTC resistance

100 ±1％

KΩ

25℃

NTC(β)

3950 ± 1％

/

25℃/50℃

Working temperature

-30 ~ 125℃

 

 
Reference Circuit :
 

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