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NDIR Gas Sensor

NDIR Gas Sensor

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STG-EA11-F4.26

NDIR Gas Sensor

Infrared thermopile gas sensor

TO-46 Housing

High sensitivity NTC

NTC thermistor compensation

Fast response time

4.26 μm narrow bandpass filter

General Description

Infrared thermopile gas sensors can measure the concentration of carbon
dioxide gas components by the change in the resistance of the thermistor
element in it. The product is packaged by TO-46 metal tube shell, the
window is equipped with a narrow bandpass filter selected for carbon
dioxide gas, and the infrared filter, thermistor and other electronic
components are integrated inside, which has the advantages of high
reliability and high sensitivity.

Features

To-46 housing

High sensitivity

NTC Thermistor Compensation

Fast response

4.26μm narrow bandpass filter

Technical Data

Parameter

Min.

Typ.

Max.

Unit

Conditions

Chip size


1.1×1.1


mm2


Sensitive area


0.35×0.35


mm2


Thermopile resistance

80

98

115

Temp=25℃

Noise voltage

36±2

nV/ Hz1/2

Temp=25℃

NEP


0.23


nW/Hz1/2

Blackbody=500K,1Hz@25℃

Responsivity

134

164

194

V/w

Blackbody=500K,1Hz@25℃

Temp. coefficient of resistance


0.06


%/℃

Temp=25℃~ 75℃

Time constant


≤ 13


ms


Specific detectivity


1.51×108


cmHz1/2/w

Blackbody=500K,1Hz@25℃

NTC Resistance


100±3%


25℃

NTC β


3950±1%


K

25/50℃


STG-EA11-F4.26

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