MQ-D1 Semiconductor Combustible Gas Sensor for Portable Combustible Gas Detection Instruments Automotive Fuel Gas Leak Detection
MQ-D1 Semiconductor Combustible Gas Sensor for Portable Combustible Gas Detection Instruments Automotive Fuel Gas Leak Detection
Features:
Ultra-low power consumption: Heating current ≤ 30 mA
High sensitivity to methane (natural gas)
Fast response: ≤ 30 seconds; Fast recovery: ≤ 60 seconds
Good stability and long service life
Simple drive circuit, easy to use
Small size, compact metal package
Wide temperature range: Operate at -10°C to +45°C
Analog signal output, proportional to gas concentration
Applications :
Domestic gas leakage detectors (natural gas, LPG, coal gas)
Industrial gas safety monitors
Portable gas detectors
Smart home gas alarm systems
|
Parameter |
Min |
Typ |
Max |
Unit |
Test Condition |
|---|---|---|---|---|---|
| Detected Gases | - | Methane, natural gas, LPG, coal gas, hydrogen, CO, smoke and flammable liquid vapors | - | - | Standard atmosphere |
| Detection Range | 300 | - | 10000 | ppm | Methane (CH4) |
| Characteristic Gas | - | 5000 ppm Methane | - | - | Calibration gas |
| Heating Voltage | - | 6 | - | V DC | Rated working voltage |
| Heating Current | - | - | 30 | mA | Working state |
| Measuring Voltage | 5 | - | 50 | V DC | Detection circuit |
| Load Resistance | - | 51 | - | Ω | Standard matching |
| Output Voltage in Clean Air | 0.7 | 1.2 | 1.6 | V | No gas, 25℃ |
| Output Voltage in Calibration Gas (V1) | 2.5 | 2.7 | - | V | 0.3% Methane, 25℃ |
| Response Time (T90) | - | - | 30 | s | 0.3% Methane |
| Recovery Time | - | - | 60 | s | After gas removal |
| Operating Temperature | -20 | - | +55 | ℃ | Full detection range |
| Operating Humidity | - | - | 95 | %RH | Non-condensing |
| Storage Temperature | -20 | - | +70 | ℃ | Sealed packaging |
| Atmospheric Pressure | 650 | - | 800 | mmHg | Working pressure |
| Continuous Stability Drift | - | ±15 | - | % | Voltage drift on RL in 24h cycle |
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