Zhengzhou Winsen Electronics Technology Co., Ltd

www.winsen-sensor.com

Tel: 86-371-67169097/67169670 Fax: 86-371-60932988

Email: sales@winsensor.com

MP503 Air-Quality Gas Sensor

Profile

MP503 gas sensor is for air quality. It adopts multilayer thick

film manufacturing technology. The heater and metal oxide

semiconductor material on the ceramic substrate of

encapsulated in metal socket and cap. Conductivity of the

sensor is affected by the concentration of target gas. The

higher the concentration is, the higher conductivity of sensor

gets. Users can adopt simple circuit to convert variation of

conductivity into output signal corresponding to gas

concentration.

Features

High sensitivity to alcohol, smoke, iso-butane, methanal; quick response and resume; low power consumption,

simple detection circuit, good stability and long life.

Main Application

It is used in occasions such as household and office for harmful gas detection, automatic exhaust device, air

cleaner&etc.

Technical Parameters Stable1.

Model

MP503

Sensor Type

flat surfaced semiconductor sensor

Standard Encapsulation

Metal Cap

Detection Gas

Alcohol, Smoke, iso-butane,methanal

Detection range

10～1000ppm(Alcohol)

Standard circuit

Loop voltage

≤24V DC

Heating voltage

5.0V±0.1V AC or DC

Load resistance

Adjustable

sensor features

in standard test

condition

Heating resistance

95Ω±10Ω (Room Temp.)

Heating consumption

≤300mW

Surface resistance

1KΩ～30KΩ(in 50ppm Alcohol)

Sensitivity

S

Rs(in air)/Rs(in 50ppm Alcohol)≥5

Concentration slope

α

Standard

condition of test

Temperature, humidity

20℃±2℃；65%±5%RH

Standard test circuit

Warm-up time

More than 48 hours