NDIR Gas Sensor

NDIR Gas Sensor

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STG-EA11-F4.26

Infrared thermopile gas sensor
TO-46 Housing
High sensitivity NTC
NTC thermistor compensation
Fast response time
4.26 μm narrow bandpass filter

Overview

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.



Feature

 To-46 housing

 High sensitivity

 NTC Thermistor Compensation

 Fast response

 4.26μm narrow bandpass filter



Datasheet

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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SENBA Sensing Technology Co.,Ltd.(stock code:300701), was founded in 2005, with the focus on producing the top quality photoelectric components, such as PIR sensors, Photoresistors,Light Sensors, Flame detectors etc. Our strategic goal is to master the core technology.