MQ303A Semiconductor Type Alcohol Sensor
MQ303A is a semiconductor sensor for Alcohol detection. It has very good sensitivity and fast response to alcohol, suitable for portable alcohol detector. Semiconductor Type Alcohol Sensor is an original and brand new mini size alcohol sensor for gift-type breathalyzer use. The sensitive material of the MQ303B gas sensor is a semiconductor material which is with lower conductivity in clean air. When the target alcohol gas exists, the sensor’s conductivity gets higher along with the gas concentration rising. Users can convert the change of conductivity to correspond output signal of gas concentration through a simple circuit. Semiconductor Type Alcohol Sensor has a high sensitivity to Alcohol gas. It is a kind of low-cost sensor for kinds of applications and also a mini size gift-type Alcohol sensor breathalyzer.
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Features:
- High sensitivity
- Fast response and resume
- Long life and low cost
- Mini Size
Features/Specs:
- Model No: MQ303A
- Sensor Type: Semiconductor
- Standard Encapsulation: Metal
- Detection Gas: Alcohol
- Concentration: 20-1000ppm Alcohol
- Heater Voltage: 0.9V ± 0.1V AC or DC
- Loop Voltage: ≤6VDC
- Load Resistance: Adjustable
- Heater Resistance: 4.5Ω ± 0.5Ω
- Heater Current: 120 ±20mA
- Heater Power: ≤140 mW
- Sensor Consumption: ≤10 mW
- Sensing Resistance: 4KΩ ~ 400KΩ (in air)
- Sensitivity: Rs(in air)/Rs(125ppm Alcohol)≥3
- Slope: 0.50 ± 0.15(R300ppm/R100ppm Alcohol)
- Temperature and Humidity: 20℃±2℃,65%±5%RH
Applications:
- It has a high sensitivity to alcohol and quick response and resume
- widely used in portable alcohol gas detectors.
Datasheet: MQ303A
Package Includes:
- 1 x MQ303A Semiconductor Type Alcohol Sensor
Note: Product Images are shown for illustrative purposes only and may differ from actual product.
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