# MQ-9B (Component) ## Description Dual Gas CO and CH4 MQ-9B is a CO and CH₄ gas detection sensor form Winsen. The sensing material of the MQ-9B is SnO2, which has a low conductivity in clean air. It detects carbon monoxide (1.5V) by method of cycling high and low temperature. The sensor’s conductivity gets higher with the CO and CH₄ gas concentration rising. The sensing range is 10-500ppm CH₄ #commonpartslibrary #sensor #gassensor #integratedcircuit ## Component Details - **Owner:** vasy_skral - **Created:** 5/3/2023 - **Last Updated:** 5/3/2023 - **Visibility:** Public - **Part Type:** Integrated Circuit - **Manufacturer Part Number:** MQ-9B - **License:** https://creativecommons.org/licenses/by/4.0/ - **Datasheet URL:** https://cdn.sparkfun.com/assets/d/f/5/e/2/MQ-9B_Ver1.4__-_Manual.pdf - **Manufacturer Name:** Winsen - **Used in:** 62 projects - **Forks:** 2 ## 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-9b_C242496.html) | $2.6052 | 0 | | [TME](https://www.tme.com/us/en-us/katalog/?queryPhrase=MQ-9B) | N/A | N/A | - **Part Type:** Integrated Circuits - **Sub-Type:** Logic - **MPN:** MQ-9B - **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-9b~zl4](https://www.flux.ai/vasy_skral/mq-9b~zl4)*