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PDF MQ303B Data sheet ( Hoja de datos )
| Número de pieza | MQ303B | |
| Descripción | Alcohol Sensor | |
| Fabricantes | Winsen Electronics | |
| Logotipo |  |
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Zhengzhou Winsen Electronics Technology Co., Ltd
www.winsensor.com
MQ303B Alcohol Sensor
Character
* High sensitivity
* Fast response and resume
* Long life and low cost
* Mini Size
Application
MQ303B is semiconductor sensor for Alcohol detection.
It has good sensitivity and fast response to alcohol,
suitable for portable alcohol detector.
Configuration
Technical Data
Model No.
MQ303B
Sensor Type
Semiconductor
Standard Encapsulation
Metal
Detection Gas
Alcohol
Concentration
20-1000ppm Alcohol
Heater Voltage V H
0.9V ± 0.1V AC or DC
Loop Voltage Vc
≤6V DC
Standard
Circuit
Conditions
Load
RL
Resistance
Heater
Resistance
RH
Adjustable
4.5Ω ± 0.5 Ω Room Tem.
Heater Current IH
120±20mA
Heater Power PH
≤ 140 mW
Sensor
PS
Consumption
≤10 mW
Sensing
Character Resistance
Rs
4KΩ-400KΩ(in air)
Sensitivity S
Rs(in air)/Rs(125ppm
Alcohol)≥3
Slope
α 0.50 ± 0.15(R300ppm/R100ppm Alcohol)
Tem. Humidity
20 ±2 65%±5%RH
Condition Standard test circuit
Preheat time
Vc:3.0 V±0.1 V DC
VH: 0.9 V±0.1 V DC
Over 48 hours
Sensing element of the
semiconductor sensor is a micro-ball, heater and
metal electrode are inside, and the sensing
element is installed in
anti-explosion double 100 mesh metal case (see
the above)
Tel: 86-371-67169097 Fax: 86-371-60932988
Email: [email protected]
1 page | ||
| Páginas | Total 3 Páginas | |
| PDF Descargar | [ Datasheet MQ303B.PDF ] | |
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