Cat No: SGS-LJX-0008 Datasheet
Product Name: Combustible Gas Sensor, 300–10000 ppm (methane, propane)
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| Detailed Description | The gas sensor uses tin dioxide (SnO2), a gas-sensitive material with low conductivity in clean air. When combustible gases are present in the sensor's environment, the sensor's conductivity increases with the concentration of these gases. A simple circuit can convert this conductivity change into an output signal corresponding to the gas concentration. The MQ-5B gas sensor is highly sensitive to butane, propane, and methane, and offers good compatibility with methane and propane. This sensor can detect a variety of combustible gases, especially liquefied petroleum gas (LPG) (propane), making it a low-cost sensor suitable for a wide range of applications. |
| Main Applications | It can be widely used in household gas leak alarms, industrial combustible gas alarms, and portable gas detectors. |
| Product Type | Semiconductor gas sensor |
| Standard Package | Plastic sealing |
| Detecting Gas | Liquefied petroleum gas, methane |
| Detection Concentration | 300–10000 ppm (methane, propane) |
| Circuit Voltage | 5.0V±0.1V DC |
| Heating Voltage | 5.0V±0.1V AC or DC |
| Load Resistor | Adjustable |
| Heating Resistor | 30Ω±3Ω (room temperature) |
| Heating Power Consumption | ≤950mW |
| Sensitivity | Rs(in air)/Rs(in 2000ppm C3H8)≥5 |
| Output Voltage | 2.5V～4.0V (in 2000ppm C3H8) |
| Concentration Slope | ≤0.6(R3000ppm/R1000ppm C3H8) |
| Standard Test Temperature and Humidity | 20℃±2℃; 55%±5%RH |
| Standard Test Circuit | Vc: 5.0V±0.1V; VH: 5.0V±0.1V |
| Standard Test Preheating Time | No less than 48 hours |
| Oxygen Content | 21% (not less than 18%, (Oxygen concentration will affect the sensor's initial value, sensitivity and repeatability. Please consult when using it in low oxygen concentration conditions ) |
| Life | 10 years |
| Features | It can detect a variety of flammable gases, especially liquefied petroleum gas (propane). Long lifespan, low cost Simple drive circuit |
| Note | Output voltage (Vs) refers to the voltage in the test atmosphere. |
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For industrial/research use only. Not for personal/medical use.
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Eata Sensors is your strategic partner in precision sensing technology. We offer a full range of advanced sensor products, core components, and customized engineering services. We collaborate with global clients to jointly solve complex measurement challenges.
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