MQ-135A
Air-quality sensing circuits are a typical application for the MQ-135A, a gas sensor in the MQ family. These sensors use a heated sensing element and require supporting circuitry to interpret changes in response. This entry represents a through-hole component with six symbol pins and six footprint pads. The supplied footprint is named SENSOR-TH_MQ-5, an important library detail to retain when locating the assets for this MQ-135A record. A symbol, that footprint and a 3D model make up the free KiCad download. For verification history, 2 ProtoFlow engineers have used the conversion in real designs. Open this sensor entry directly in ProtoFlow.
Download KiCad files
Use MQ-135A in your design
ProtoFlow is a free, AI-native EDA tool. Drop this part onto a schematic, route a PCB, and let the AI copilot help. The symbol, footprint, and 3D model come in linked and ready.
Free to start. macOS, Windows and Linux. No sign-up to try.
