RTGA71 sensor is a single-channel thermopile gas sensor, which contains a thermopile chip based on MEMS technology and connects hundreds of pairs of thermocouples in series, to convert the absorbed infrared radiation into a voltage signal. There is a narrow-band filter in the front of the sensor, and the sensor can be used for the detection of carbon dioxide concentration. The sensor NTC itself has temperature compensation, to improve the measurement accuracy.

Application

NDIR (CO2) Gas Detection equipment
Indoor air quality detection and HVAC system control
CO2 gas control in industrial workshop
CO2 emission control of combustion furnace
Human breath detection
Interior air quality monitoring of automotive

Features

TO-46 metal package
High sensitivity
Quick response, Good stability
High transmittance of narrowband filter
High precision NTC

Specifications

Parameter	Value	Unit	Remarks
Chip size	1.35×1.35	mm	/
Field of view	95	Degree	Above 50%
Filter center wavelength	4.26	um
Thermopile resistor	76±10	KΩ	25℃,1V
Noise voltage	38	nV/Hz1/2	25℃
Noise equivalent power	0.23	nW/Hz1/2	500K, 1Hz, 25℃
Response rate	160±40	V/W	500K, 1Hz, 25℃
Temperature coefficient of resistance	0.06	%/℃	25℃~75℃
Time constant	≤13	ms
ChipDetection rate	1.5 ×108	cmHz1/2/W	500K, 1Hz, 25℃
NTC resistance	100 ±1％	KΩ	25℃
NTC(β)	3950 ± 1％	/	25℃/50℃
Working temperature	-30 ~ 125℃

* The description and specifications might be changed without notice. Please contact us for the latest information before placing orders.

1 PC RTGA71 Thermopile Gas Sensor