TGS3870-B00 Methane and Carbon Monoxide Gas Sensor
USD $5 - $20 /Piece
Min.Order:1 Piece
TGS3870-B00 Methane and Carbon Monoxide Gas Sensor Features:
* Miniature size and low power consumption
* High sensitivity and selectivity to both methane and carbon monoxide (CO)
* Low sensitivity to alcohol vapor
* Long life and low cost
TGS3870-B00 Methane and Carbon Monoxide Gas Sensor Applications:
* Combination methane and carbon monoxide detectors
TGS3870-B00 is a micro-bead type semiconductor gas sensor for the detection of both methane and carbon monoxide. Using a micro-bead gas sensing structure, both methane and carbon monoxide can be detected with a single sensor element by periodic application of two different heater voltages (high and low). Miniaturization of the gas sensing bead results in a heater power consumption of only 38mW (average).
TGS3870-B00 has low sensitivity to alcohol vapors (a typical interference gas in the residential environment) and has high durability, making the sensor ideal for consumer market gas alarms.
TGS3870-B00 Methane and Carbon Monoxide Gas Sensor Specifications:
Model number | TGS3870-B00 | |||
Sensing principle | MOS type | |||
Standard package | Plastic base and metal can | |||
Target gases | Methane and Carbon Monoxide | |||
Typical detection range | Methane 500 ~ 12,500ppm Carbon monoxide 50~1,000ppm | |||
Standard circuit conditions | Heater Voltage | VH | VHH = 0.9V±3% for 5 sec. VHL = 0.2V±3% for 15sec. | |
Circuit voltage | VC | 5.0±0.2V DC pulse (refer to Technical Information for TGS3870-B00) | ||
Load resistance | RL | variable (>0.75kΩ) | ||
Heater resistance | RH | 3Ω±0.3Ω at room temp. | ||
Heater power consumption | PH | 120mW | VHH = 0.9V DC | |
11mW | VHL = 0.2V DC | |||
38mW | average | |||
Sensor resistance | Rs | 0.35kΩ~3.5kΩ in 3000ppm methane | ||
1.8kΩ~24kΩ in 150ppm CO | ||||
Sensitivity (change ratio of Rs) | β | 0.50~0.65 | Rs (3000ppm CH4 ) Rs (1000ppm CH4) | |
0.1~0.6 | Rs (300ppm CO) Rs (150ppm CO) | |||
Standard test conditions | Test gas conditions | Target gas in air at 20±2˚C, 65±5%R | ||
Circuit conditions | VHH = 0.9V±2% for 5 sec. VHL = 0.2V±2% for 15 sec. Vc = 5.0±0.02V DC pulse (refer to Technical Information for TGS3870-B00) | |||
Conditioning period before test | ≥5 days |