Infrared thermopile gas sensor
TO-46 Housing
High sensitivity NTC
NTC thermistor compensation
Fast response time
4.26 μm narrow bandpass filter
The STG-EA11-F4.26 is an infrared thermopile gas sensor developed by Senba Sensing. The STG-EA11-F4.26 measures gas concentration (such as CO₂) by detecting changes in the resistance of its internal thermistor and uses a 4.26 µm narrow-band infrared filter for selective gas detection. The STG-EA11-F4.26 is housed in a TO-39 metal package and offers high sensitivity, thermistor temperature compensation, and fast response performance. The STG-EA11-F4.26 is used in indoor air quality monitoring, HVAC and ventilation systems, in-vehicle air purification, and industrial gas measurement applications.
To-46 housing
High sensitivity
NTC Thermistor Compensation
Fast response
4.26μm narrow bandpass filter
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 | KΩ | 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% | KΩ | 25℃ | ||
NTC β | 3950±1% | K | 25/50℃ | ||
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