First, product introduction

The MS1352 ethanol sensor is a micro-gas sensor developed based on MEMS process metal oxide materials, which can be used to detect the content of ethanol gas in the air.

The sensor is the self-developed ethanol gas sensitive material coated on the electrode, when the ethanol gas contact the sensitive material, the conductivity of the sensitive material will change, the use of a specific circuit can be converted into the electrical conductivity change corresponding to the concentration of the gas output signal.

Second, sensor characteristics

Using MEMS process and semiconductor materials, it has the advantages of small size, low power consumption, high sensitivity, fast response recovery, simple drive circuit, good stability, long life, strong structure, good shock resistance and so on.

Three, the main application

It is suitable for alcohol monitor, mobile phone, computer, car and other consumer electronic products to detect the content of ethanol.

Iv. Technical parameter description

Product model: MS1352

Product Type: MEMS semiconductor sensor

Standard package: ceramic package

Detection gas: ethanol C2H5OH

Detection concentration: 0 ~ 500 ppm (ethanol)

Resolution: 0.1ppm (ethanol)

Standard circuit condition: loop voltage

Loop voltage VC: MCU I/O to output a high level of 5V or 3.3V

Heating voltage VH+ : 1.8±0.05 VAC or DC

Load resistance RL: adjustable (subject to shipment report)

Gas sensing element characteristics

Heating resistance RH: 43± 5Ω (measured at room temperature)

Heating power consumption PH: ≤ 36mW

Sensor resistance RS: 10 ~ 500 KΩ(air test)

Sensitivity S: R0(in air)/Rs(in 100ppm ethanol)≥13

Slope α : ≤0.6(R125ppm/R25ppm ethanol)

Standard test conditions

Temperature, humidity: 20±2℃; 55±5 %RH

Standard test circuit

Vcc: Use MCU I/O to output a high level of 5V or 3.3V; VH: 1.8± 0.05V

Preheating time: 30 s

Response time (T90) :

Recovery time (T10) :

Life: ≥3 years