MQ6 PDF Manual – Flammable Gas Sensor ( Datasheet )

Part Number: MQ6

Function: Gas Sensor

Package: 9 Pin Type

Manufacturer: HANWEI


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MQ6 image


1. Gas sensing layer : SnO2

2. Electrode : Au

3. Electrode line : Pt

4. Heater coil : Ni-Cr alloy

5. Tubular ceramic : Al2O3

6. Anti-explosion network :  Stainless steel gauze (SUS316 100-mesh)

7. Clamp ring : Copper plating Ni

8. Resin base : Bakelite

9. Tube Pin : Copper plating Ni



This is gas leakage detect Sensor.


1. High sensitivity to LPG, iso-butane, propane

2. Small sensitivity to alcohol, smoke.

3. Fast response.

4. Stable and long life

5. Simple drive circuit


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Appications :

They are used in gas leakage detecting equipments in family and industry, are suitable for detecting of LPG, iso-butane, propane, LNG, avoid the noise of alcohol and cooking fumes and cigarette smoke.

Note ]

Structure and configuration of MQ-6 gas sensor is shown as Fig. 1 (Configuration A or B), sensor composed by micro AL2O3 ceramic tube, Tin Dioxide (SnO2) sensitive layer, measuring electrode and heater are fixed into a crust made by plastic and stainless steel net. The heater provides necessary work conditions for work of sensitive components. The enveloped MQ6 have 6 pin ,4 of them are used to fetch signals, and other 2 are used for providing heating current.

MQ6 Datasheet PDF