Product Introduction
1. MEMSAir Quality SensorTGS8100 Description
The sensing element consists of a sensing chip, an integrated heater formed on a silicon substrate using MEMS technology, and a metal oxide semiconductor layer formed on the sensing chip. The element is housed in a ceramic surface mount package. Due to the miniaturized design of the sensing chip, the TGS8100 requires only 15mW of heating power, making it ideal for low-power and battery-powered devices. If detectable gases are present, the sensor's conductivity increases with the gas concentration in the air. A simple circuit can then convert the change in conductivity into an output signal proportional to the gas concentration.
TGS8100Highly sensitive to low concentrations of gaseous air pollutants such as cigarette smoke and cooking fumes. By utilizing the rate of change of the sensor resistance relative to its resistance in clean air as a relative response value, it can simulate human perception of air pollutants, thereby enabling practical air quality control.
* Surface mount package
* Low power consumption
* Highly sensitive to cigarette smoke, cooking fumes, and gaseous air pollutants
* Long lifespan
* Low cost
3. MEMS Air Quality Sensor TGS8100 Applications:
* Air purifiers
* Indoor air quality monitors
* Ventilation control
4. MEMS Air Quality Sensor TGS8100 Specifications:
| Model | TGS8100 | |
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| Sensing Principle | Metal Oxide Semiconductor | |
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| Standard Package | Ceramic | |
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| Target Gases | Air pollutants (hydrogen, ethanol, etc.) | |
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| Typical Measurement Range | 1 ~30ppm H2 | |
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| Standard Circuit Conditions | Heater Voltage | VH | 1.8V DC±2% | |
| Circuit Voltage | VC | max 3.0V DC （ 2ms）,0v ≥ 998ms VC | ||
| Load Resistance | RL | Variable (10kΩ min.) | ||
| Standard Test Conditions | Heater Resistance | RH | Approximately 110Ω at room temperature | |
| Electrical Characteristics | Heater Current | IH | 8mA (typical) | |
| Heater Power Consumption | PH | 15mW (typical) | |
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| Sensor Resistance | Rs | 10kΩ ~ 300kΩ in air | ||
| Sensitivity (Rs change rate) | ~0.6 | Rs (10ppm H2)/Rs air | ||
5. MEMS Air Quality Sensor TGS8100 Standard Test Conditions
Test Gas Conditions: Standard air 20±2˚C, 65±5%RH
Circuit Conditions: Same as standard circuit conditions
Pre-test Conditioning Time: One hour or more
