ZTP-148SR IR Sensor

main-ZTP-135L

Thermometrics Thermopile IR Sensors are used for non-contact surface, or infrared, temperature measurement. The ZTP-148SR Model consists of thermo-elements, flat infrared filter and thermistor for temperature compensation, all in one hermetically-sealed TO-46 (18) sensor package. There are a variety of filters availableto maximize performance in specific applications.

 

 

 

 

Features

  • Compact design
  • High sensitivity
  • Fast response time
  • Low cost
  • Included ambient temperature (thermistor) sensor

 

Applications

  • Ear thermometers
  • Forehead thermometers
  • Surface temperature measurement of the human body

 

Specifications

 

Thermopile Chip

ParameterLimit MinLimit TypLimit MaxUnitsCondition
Chip Size   1.8 x 1.8   mm2  
Active Area   1.0 x 1.0   mm2 Absorber Area
Internal Resistance 60 85 111 @ 25°C
Resistance T.C.     0.12 %/°C  
Responsivity 43 61 79 V/W 500K, 1 Hz
Responsivity T.C.   -0.07   %/°C  
Noise Voltage   37   nV rms R.M.S., 25°C
NEP   0.61   nW/Hz½  
Detectivity   1.14   cmHz½/W  
Time Constant   32   ms  

 

NTC Thermistor for Temperature Compensation

ParameterLimit MinLimit TypLimit MaxUnitsCondition
Resistance 97 100 103 Tol: 3%, @ 25°C
Beta - Value 3920 3960 4000 K Tol: 1%, Defined at 25°C/50°C

 

Absolute Maximum Ratings:

Operating Temperatue: -20°C ~ 100°C

Storage Temperature: -40°C ~ 120°C

 

 
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