ShenzhenYijiajie Electronic Co., Ltd.
The company advocates the corporate culture of "integrity and dedication, pragmatic innovation, unity and cooperation, diligence and progress", pays attention to standardized management, advocates
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Low power consumption
High sensitivity to amine-series and sulfurous odor gases
High sensitivity to food odors
Long life and low cost
Uses simple electrical circuit
Applications:
Air cleaners
Ventilation control
Deodorizer control
Air quality monitors
The sensing element is comprised of a metal oxide semiconductor layer formed on an alumina substrate of a sensing chip together with an integrated heater. In the presence of a detectable gas, the sensor's conductivity increases depending on the gas concentration in the air. A simple electrical circuit can convert the change in conductivity to an output signal which corresponds to the gas concentration.
The TGS 2603 has high sensitivity to low concentrations of odorous gases such as amine-series and sulfurous odors generated from waste materials or spoiled foods such as fish.
By utilizing the change ratio of sensor resistance from the resistance in clean air as the relative response, human perception of air contaminants can be simulated and practical air quality control can be achieved.
| Model number | TGS2603-B00 | |||
| Sensing element type | 26-series | |||
| Standard package | TO-5 metal can | |||
| Target gases | Trimethylamine, H2S, etc. | |||
| Typical detection range | 1 ~ 10ppm | |||
| Standard circuit conditions | Heater voltage | VH | 5.0±0.2V AC/DC | |
| Circuit voltage | VC | 5.0±0.2V DC | Ps≤15mW | |
| Load resistance | RL | variable | 0.45kΩ min. | |
| Electrical characteristics under standard test conditions | Heater resistance | RH | approx 67Ω at room temp.(typical) | |
| Heater current | IH | 48mA | ||
| Heater power consumption | PH | 240mW | VH=5.0V DC | |
| Sensor resistance | RS | 20 ~ 200kΩ in air | ||
| Sensitivity(change ratio of Rs) | ＜0.5 | Rs(10ppm EtOH)/Rs(air) | ||
| Standard test conditions | Test gas conditions | normal air 20±2˚C, 65±5%R.H. | ||
| Circuit conditions | Vc = 5.0±0.2V DC VH = 5.0±0.2V AC/DC | |||
| Conditioning period before test | 96 hours or longer | |||
