1 PC RTGA71 Thermopile Gas Sensor
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.