TGS2602-B00 High Sensitivity Gas Sensor For Air - Contaminant Detection
TGS2602-B00 High Sensitivity Gas Sensor For Air - Contaminant Detection
Sensing Principle:
The sensing element is composed of a metal - oxide semiconductor layer formed on the alumina substrate of a sensing chip and an integrated heater. When the detectable gas exists, the conductivity of the sensor increases with the increase of the gas concentration in the air. A simple electrical circuit can convert the conductivity change into an output signal corresponding to the gas concentration.
Basic Measuring Circuit:
The sensor requires two - voltage inputs, namely heater voltage (VH) and circuit voltage (VC). The heater voltage is applied to the integrated heater, and the circuit voltage is used to measure the voltage across the load resistor connected in series with the sensor. DC voltage is required for the circuit voltage, and the sensor has polarity.
| Model | TGS2602 - B00 |
| Detection Principle | Oxide Semiconductor Type |
| Standard Package | TO - 5 Metal |
| Target Gas | Air Pollutants (VOCs, Ammonia, Hydrogen Sulfide, etc.) |
| Detection Range | 1 - 30 ppm (Ethanol) |
| Heater Voltage (VH) | 5.0±0.2V DC |
| Circuit Voltage (VC) | 5.0±0.2V DC |
| Maximum Power Consumption (Ps) | ≤15mW |
| Load Resistance (RL) | Variable, 0.45kΩ min. |
| Heater Resistance (RH) | Approximately 59Ω at room temperature |
| Heater Current (IH) | 56±5mA |
| Heater Power Consumption (PH) | 280mW (Typical) |
| Sensor Resistance (RS) | 10 - 100kΩ in air |
| Sensitivity (Change rate of Rs) | 0.08 - 0.5 Rs (Ethanol 10ppm, compared with Rs in air) |
| Test Gas Conditions | Normal air, 20±2˚C, 65±5%R.H. |
| Circuit Conditions | Vc = 5.0±0.01V DC, VH = 5.0±0.05V DC |
| Dimensions | φ9.2±0.2mm×7.8±0.5mm |
| Weight | Approximately 1.1g |
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