MQ303B 데이터시트 PDF

MQ303B 데이터시트 를 다운로드하여 반도체의 전기적 특성과 매개변수에 대해 알아보세요.

미리보기를 사용할 수 없습니다

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: sales@winsensor.com

당사 플랫폼은 키워드, 제품 이름 또는 부품 번호를 사용하여 검색할 수 있는

포괄적인 데이터시트를 제공합니다.