# MQ-2 (Component) ## Description MQ-2 is a smoke and combustible gas sensor from Winsen. It can detect flammable gas in a range of 300 - 10000ppm. It's most common use is domestic gas leakage alarms and detectors with a high sensitivity to propane and smoke. The sensing material is SNO₂ for which the conductivity is lower in clean environments and higher when smoke or flammable gas is present. #commonpartslibrary #sensor #gassensor #integratedcircuit ## Component Details - **Owner:** vasy_skral - **Created:** 5/3/2023 - **Last Updated:** 8/26/2024 - **Visibility:** Public - **Part Type:** Integrated Circuit - **Manufacturer Part Number:** MQ-2 - **License:** https://creativecommons.org/licenses/by/4.0/ - **Datasheet URL:** https://cdn.sparkfun.com/assets/3/b/0/6/d/MQ-2.pdf - **Symbol Style:** Parametric - **Manufacturer Name:** SparkFun Electronics - **Used in:** 683 projects - **Stars:** 2 - **Forks:** 3 ## Distributor Pricing (qty 1) *Pricing shown for quantity 1. For price breaks and other quantities, open in Flux.* | Distributor | Unit Price (qty 1) | Stock | |------------|--------------------|-------| | [LCSC](https://www.lcsc.com/product-detail/gas-sensors_zhengzhou-winsen-elec-tech-mq-2_C99296.html) | $1.1714 | 0 | | [TME](https://www.tme.com/us/en-us/katalog/?queryPhrase=MQ-2) | N/A | N/A | - **Part Type:** Integrated Circuits - **Sub-Type:** Logic - **Manufacturer:** SparkFun - **MPN:** MQ-2 - **Package / Case Code:** TO - **Pin Count:** 6 - **Logic Function:** AND ## Pins | Pin | Name | Type | |-----|------|------| | 1 | B1 | | | 2 | VH+ | | | 3 | B2 | | | 4 | A2 | | | 5 | VH- | | | 6 | A1 | | --- *Generated from [https://www.flux.ai/vasy_skral/mq-2~b9j](https://www.flux.ai/vasy_skral/mq-2~b9j)*