DataSheet39.com

What is MQ-2?

This electronic component, produced by the manufacturer "ETC", performs the same function as "Semiconductor Sensor for Combustible Gas".


MQ-2 Datasheet PDF - ETC

Part Number MQ-2
Description Semiconductor Sensor for Combustible Gas
Manufacturers ETC 
Logo ETC Logo 


There is a preview and MQ-2 download ( pdf file ) link at the bottom of this page.





Total 3 Pages



Preview 1 page

No Preview Available ! MQ-2 datasheet, circuit

MQ-2 Semiconductor Sensor for Combustible Gas
Sensitive material of MQ-2 gas sensor is SnO2, which with lower conductivity in clean air. When the
target combustible gas exist, The sensor’s conductivity is more higher along with the gas concentration
rising. Please use simple electrocircuit, Convert change of conductivity to correspond output signal of
gas concentration.
MQ-2 gas sensor has high sensitity to LPG, Propane and Hydrogen, also could be used to Methane
and other combustible steam, it is with low cost and suitable for different application.
Character
*Good sensitivity to Combustible gas in wide range
* High sensitivity to LPG, Propane and Hydrogen
* Long life and low cost
* Simple drive circuit
Configuration
Application
* Domestic gas leakage detector
* Industrial Combustible gas detector
* Portable gas detector
Technical Data
Basic test loop
T
Model No.
Sensor Type
Standard Encapsulation
Detection Gas
Concentration
Loop Voltage
Circuit
Heater Voltage
Load
Resistance
Heater
Resistance
Heater
consumption
Character Sensing
Resistance
Vc
VH
RL
RH
PH
Rs
Sensitivity S
Slope
α
Tem. Humidity
Condition Standard test circuit
Preheat time
MQ-2
Semiconductor
Bakelite (Black Bakelite)
Combustible gas and smoke
300-10000ppm
( Combustible gas)
24V DC
5.0V±0.2V ACorDC
Adjustable
31±3Room Tem.
900mW
2K-20K(in 2000ppm C3H8 )
Rs(in air)/Rs(1000ppm
isobutane)5
0.6(R5000ppm/R3000ppm CH4)
20±2℃;65%±5%RH
Vc:5.0V±0.1V
VH: 5.0V±0.1V
Over 48 hours
Vc VRL
RL
VH
GND
The above is basic test circuit of the sensor.
The sensor need to be put 2 voltage,
heater voltageVHand test voltageVC.
VH used to supply certified working
temperature to the sensor, while VC used
to detect voltage (VRL) on load resistance
RLwhom is in series with sensor. The
sensor has light polarity, Vc need DC
power. VC and VH could use same power
circuit with precondition to assure
performance of sensor. In order to make
the sensor with better performance,
suitable RL value is needed:
Power of Sensitivity body(Ps):
Ps=Vc2×Rs/(Rs+RL)2


Part Details

On this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for MQ-2 electronic component.


Information Total 3 Pages
Link URL [ Copy URL to Clipboard ]
Product Image
and Detail view

MQ-2 Datasheet PDF


1. Datasheet PDF - Gas Sensor

[ Learn More ]




Download [ MQ-2.PDF Datasheet ]

Share Link :

Electronic Components Distributor


An electronic components distributor is a company that sources, stocks, and sells electronic components to manufacturers, engineers, and hobbyists.


SparkFun Electronics Allied Electronics DigiKey Electronics Arrow Electronics
Mouser Electronics Adafruit Newark Chip One Stop


Featured Datasheets

Part NumberDescriptionMFRS
MQ-1168The function is Evaluation Board Users Guide. MediaQMediaQ
MQ-1168The function is Multimedia Platform Controller. MediaQMediaQ
MQ-131The function is GAS SENSOR. ETCETC

Semiconductors commonly used in industry:

1N4148   |   BAW56   |   1N5400   |   NE555   |  

LM324   |   BC327   |   IRF840  |   2N3904   |  



Quick jump to:

MQ-2     1N4     2N2     2SA     2SC     74H     BC     HCF     IRF     KA    

LA     LM     MC     NE     ST     STK     TDA     TL     UA    



Privacy Policy   |    Contact Us     |    New    |    Search