NDIR Gas Sensor

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NDIR Gas Sensor STG-EA12-F4.26/F3.91

TO-39 Package
High Sensitivity
NTC Thermistor Compensation
Fast Response
4.26μm, 3.91μm Narrowband Filter

Overview

The NDIR gas sensor can measure the CO2 gas concentration through the change of the resistance value of the internal thermistor. The product is packaged in a TO-39 metal socket and has two separate filters: one is the reference filter and the other is a narrow bandpass filter for the CO2 gas band. The sensor integrates electronic components such as thermopile chips and thermistor, with high reliability and high sensitivity.


Feature


  • TO-39 Package

  • High sensitivity

  • NTC Thermistor Compensation

  • Fast response

  • 4.26μm, 3.91μm narrowband filter

Application:

  • Indoor Air Monitoring

  • Central ventilation system

  • In-car air purification 

  • Industrial gas measurement


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

Dimensions

image.png

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Tel.: +86-755-82594732

E-mail: sales.sz@nysenba.com

E-mail: sales.sz@nysenba.com

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SENBA Sensing Technology Co.,Ltd., 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.