optics - NDIR Gas Sensor with 1 window

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NDIR Gas Sensor

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-46 metal socket and 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. The sensor is designed for indoor use.

In addition, we welcome any challenges and needs for customized applications

Product Features:

TO-46 Package
High sensitivity
NTC Thermistor Compensation
Fast response
4.26μm narrowband filter

Application:

Indoor Air Monitoring
Central ventilation system
Industrial gas measurement

Specifications :

Parameters	Unit	Min	Typical	Max
Chip size	mm^2		1.1×1.1
Sensitive area	mm^2		0.35×0.35
Thermopile resistance (Temp=25°C)	KΩ	80	98	115
Noise voltage (Temp=25°C)	nV/Hz^1/2		36±2
NEP (Blackbody=500K,1Hz@25°C)	nW/Hz^1/2		0.23
Responsivity (Blackbody=500K,1Hz@25°C)	V/w	134	164	194
Temp. coefficient of resistance (Temp=25°C~75°C)	%/°C		0.06
Time constant	ms			13
Specific detectivity (Blackbody=500K,1Hz@25°C)	cmHz^1/2/w		1.51×10^8
NTC Resistance (25°C)	KΩ		100±3%
NTC β (25/50°C)	K		3950±1%
Working temperature	°C	-30		85
Storage Temperature	°C	-30		100

Spectral curve:

Dimensions:

NDIR Gas Sensor with one narrow bandpass filter, SIGS-HA11 ($8.2):



		Lead time is around 3 weeks, Contact us for quantity pricing.