This is a LoRa based gas leakage detector design featuring a BME680 gas sensor by Bosch Sensortec. It includes a Seeed LoRa module for RF communication and uses an MCU. The power is driven by two non-rechargeable AA batteries with voltage regulation by TPS613221ADBVR IC. The project also incorporates user interaction components such as indicators (LED) and switches. #LoRa #MCU #ReferenceDesign #Module #reusable #module #simple-embedded #seeed #seeed-studio #sublayout

This project is a Bluetooth Low Energy (BLE) gas leakage detection system. It uses a BME680 sensor from Bosch Sensortec for gas detection and a BMD-330-A-R module from U-blox for BLE communication. It also features a user interaction button, RGB signaling LED, and is powered by two non-rechargeable AA batteries. #BLE #MCU #ReferenceDesign #Module #reusable #module #simple-embedded #ublox #sublayout

Gas, Humidity, Pressure, Temperature Sensor I²C, SPI Output #commonpartslibrary #sensor #transducer

Gas Discharge Tube 90V 2000A (2kA) 2 Pole Surface Mount #commonpartslibrary #circuit-protection #GDT #SG

Hydrogen Gas Sensor. This is a simple-to-use hydrogen gas sensor, suitable for sensing hydrogen concentrations in the air. The MQ-8 can detect hydrogen gas concentrations anywhere from 100-10000ppm. #commonpartslibrary #sensor #gassensor #integratedcircuit

Gas Discharge Tube 90 V 10000A (10kA) ±20% 3 Pole Surface Mount #commonpartslibrary #circuitprotection #gas #discharge #tube #gdt

Surge Arresters, 2 electrodes Arresters, Nominal DC sparkover voltage = 400V Gas Discharge Tube 400 V 2500A (2.5kA) ±15% 2 Pole Surface Mount #CommonPartsLibrary #Circuit-protection #GDT

Air Quality Sensors VOC and NOx (MOX) Gas Pollutant Sensor The SGP41-D-R4 is a compact digital gas sensor developed by Sensirion for indoor air quality monitoring applications. It is designed to detect volatile organic compounds (VOC) and nitrogen oxides (NOx) using Sensirion’s CMOSens® sensor technology. The device integrates sensing elements, analog front-end circuitry, calibration memory, and digital signal processing within a miniature surface-mount package, enabling accurate and reliable environmental sensing with minimal external components. The sensor communicates through a standard I²C digital interface and is optimized for low-power operation, making it suitable for battery-powered and portable electronic systems. The SGP41 is intended for use in air purifiers, HVAC systems, smart home devices, wearable electronics, environmental monitoring equipment, and other applications requiring real-time indoor air quality assessment. The device supports humidity-compensated measurements when paired with an external humidity and temperature sensor, improving long-term stability and measurement accuracy. Factory calibration eliminates the need for manual calibration during manufacturing. Key Features Digital VOC and NOx gas sensing CMOSens® technology integration I²C communication interface Fully calibrated and linearized output Humidity compensation capability Low power consumption operation Compact DFN surface-mount package Fast response and recovery characteristics Optimized for indoor air quality applications RoHS and halogen-free compliant Electrical Characteristics Supply voltage operation compatible with low-voltage embedded systems Low average current consumption suitable for portable devices Integrated digital signal processing and calibration memory I²C serial communication support with standard addressing Stable operation across industrial temperature ranges Mechanical Characteristics Small DFN package optimized for compact PCB layouts Surface-mount assembly compatible Low-profile package suitable for space-constrained designs Moisture-sensitive device requiring proper handling during assembly Functional Characteristics Simultaneous VOC and NOx sensing capability Real-time indoor air quality monitoring Compensation support for environmental humidity effects Long-term measurement stability Fast startup and measurement readiness Designed for continuous sensing applications Typical Applications Indoor air quality monitoring systems Smart thermostats and HVAC controllers Air purifiers and ventilation systems Smart home and IoT devices Portable environmental monitoring equipment Wearable health and wellness devices Building automation systems Consumer electronics requiring air quality detection #Sensor #Transducer #Gas#Sensor #SGP41

IXYS Integrated Circuits brings OptoMOS® technology, reliability and compact size to a new family of high-power Solid State Relays. As part of this family, the CPC1709J single-pole normally open (1-Form-A) DC Solid State Power Relay employs optically coupled MOSFET technology to provide 2500Vrms of input to output isolation. The output, constructed with an efficient MOSFET switch and photovoltaic die, uses IXYS Integrated Circuits’ patented OptoMOS architecture while the input, a highly efficient infrared LED, provides the optically coupled control. The combination of low on-resistance and high load current handling capability makes this relay suitable for a variety of high performance DC switching applications. The unique ISOPLUS-264 package pioneered by IXYS enables Solid State Relays to achieve the highest load current and power ratings. This package features a unique IXYS process where the silicon chips are soft soldered onto the Direct Copper Bond (DCB) substrate instead of the traditional copper leadframe. The DCB ceramic, the same substrate used in high power modules, not only provides 2500Vrms isolation but also very low junction-to-case thermal impedance (0.3 °C/W). Features • 22.8ADC Load Current with 5°C/W Heat Sink • Low 0.05 On-Resistance • 60VP Blocking Voltage • 2500Vrms Input/Output Isolation • Low Thermal Impedance: JC = 0.3 °C/W • Isolated, Low Thermal Impedance Ceramic Pad for Heat Sink Applications • Low Drive Power Requirements • No EMI/RFI Generation Applications • Industrial Controls / Motor Control • Robotics • Medical Equipment—Patient/Equipment Isolation • Instrumentation • Multiplexers • Data Acquisition • Electronic Switching • I/O Subsystems • Meters (Watt-Hour, Water, Gas) • Transportation Equipment #CPC1709J #IXYS #Littelfuse #SolidStateRelay #SSR #OptoMOS #PowerRelay #DCRelay #MOSFETRelay #HighCurrentSwitching #ElectricalIsolation #IndustrialElectronics #PowerManagement #BatterySystems #AutomationControl

Gas, Humidity, Pressure, Temperature Sensor Digital Output The BME690 is a compact 4-in-1 environmental sensor from Bosch Sensortec designed for advanced indoor air-quality monitoring. It integrates gas, humidity, temperature, and barometric pressure sensing into a single low-power MEMS device. The sensor is optimized for battery-powered and high-condensation environments, making it suitable for smart home, industrial, wearable, and IoT applications. Key Features 4-in-1 environmental sensing: Gas sensing Relative humidity Temperature Barometric pressure Detects: Volatile Organic Compounds (VOCs) Volatile Sulfur Compounds (VSCs) Other air-quality-related gases Supports indoor air quality (IAQ) monitoring Provides: IAQ index bVOC equivalent CO₂ equivalent outputs Improved robustness for high-condensation environments Ultra-small package: 3.0 × 3.0 × 0.93 mm 8-pin metal LGA package Low power consumption suitable for battery-powered devices Interfaces: I²C up to 3.4 MHz SPI up to 10 MHz Wide operating range: Temperature: −40°C to +85°C Humidity: 0–100% RH Pressure: 300–1100 hPa Supply voltage: VDDIO: 1.2 V to 3.6 V VDD: 1.71 V to 3.6 V Humidity accuracy: ±3% RH Temperature accuracy: ±0.5°C Pressure accuracy: ±0.5 hPa absolute Supports AI-based gas classification using Bosch BME AI-Studio Pin-compatible evolution of the BME688 platform Designed for: Smart home devices HVAC systems Air-quality mapping Food freshness monitoring Wearables Industrial sensing applications #CommonPartsLibrary #Sensor

Gas Discharge Tube 360 V 1000A (1kA) 2 Pole Surface Mount #CommonPartsLibrary #Circuit-protection #GDT

Pressure Sensor +/-0.22PSI (+/-1.5kPa) Differential Male - 0.08\" (2.00mm) Tube, Dual 16 b 16-SMD Module, Dual Top Ports The SDP33-1500Pa-TR-250PCS is a digital differential pressure sensor module from Sensirion AG, designed for high-precision measurement of low-pressure differences up to ±1500 Pa (±1.5 kPa). It belongs to the SDP3x series, which uses Sensirion’s CMOSens® technology for compact, accurate, and stable sensing performance. It is widely used in HVAC systems, airflow measurement, medical devices, and industrial control applications where precise air or gas flow monitoring is required. Key Features Differential Pressure Measurement Range: ±1500 Pa (±1.5 kPa) Digital Output Interface I²C communication for easy MCU integration High Resolution 16-bit digital output Accurate & Stable Performance Factory-calibrated and temperature compensated No zero-point drift Low Power Consumption Designed for battery-powered and embedded systems Compact SMD Module Small footprint, surface-mount package (easy PCB integration) Fast Response Time Suitable for real-time airflow and pressure monitoring Wide Operating Conditions Supply voltage: ~3.3V Operating temperature: -40°C to +85°C Reflow Solderable Compatible with standard SMT manufacturing processes Reliable Long-Term Stability Built for high-volume industrial and commercial applications Typical Applications HVAC airflow and filter monitoring Ventilation and air quality systems Medical respiratory devices Industrial automation and process control Drones and airspeed (pitot tube systems) IoT environmental sensing #CommonPartsLibrary #Sensor

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

MQ135 Gas Sensor For Air Qaulity Digital / Analog Output Sensor: gas; ammonia (NH3),benzene; Range: 10÷10000ppm; #MQ135 #commonpartslibrary #sensor #gassensor #integratedcircuit

MP503 Air-Quality Gas Sensor

Pressure Sensor -0.57PSI ~ 0.57PSI (-3.92kPa ~ 3.92kPa) Gauge Male - 0.1" (2.5mm) Tube 7 b 12-SMD, No Lead, Top Port The MMR920C04ARE, manufactured by Mitsumi Electric, is a surface-mount pressure sensor that measures low differential (gauge) pressure with high accuracy. It integrates sensing, signal conditioning, and digital output in a single package, making it easy to interface with microcontrollers. Sensor Type: MEMS-based gauge pressure sensor Pressure Range: ±0.57 PSI (±3.92 kPa) Output Interface: Digital (supports I²C and SPI) Resolution: 7-bit output (internally higher-resolution processing available) Supply Voltage: 3.0 V to 3.6 V Accuracy: حوالي ±0.65% full scale Package: 12-SMD, no-lead, top-port (compact ~7×7×7.2 mm) Port Type: 2.5 mm tube (barbless) for airflow or gas connection Features: Built-in temperature compensation Fast sampling capability Factory-calibrated digital output #CommonPartsLibrary #Sensor #Pressure-Sensor #Transducer

Gas Discharge Tube (GDT) 2093-250-SM-RPLF DIO-DT-SMD_BD6.2-L4.2 LCSC Part Number: C2649794 JLCPCB Part Class: undefined Manufactured by BOURNS

Alcohol Gas Sensor. Suitable for detecting of alcohol and small sensitivity to Benzine. They are suitable for alcohol checker, Breathalyser. #commonpartslibrary #sensor #gassensor #integratedcircuit

Gas Discharge Tube (GDT) CG7230MS DIO-DT-SMD_L3.5-W2.8 LCSC Part Number: C2649803 undefined Manufactured by Littelfuse(美国力特)

Gas Discharge Tube (GDT) 2003-25-SM-RPLF DIO-DT-SMD_L3.5-W2.8 LCSC Part Number: C2155110 JLCPCB Part Class: undefined Manufactured by BOURNS

Gas Discharge Tube (GDT) CG41.8SM DIO-DT-SMD_BD6.2-L4.2 LCSC Part Number: C2649797 undefined Manufactured by Littelfuse(美国力特)

Gas Discharge Tube (GDT) 2095-350-BT1LF DIO-DT-TH_BD8.0-L8.0-P12.00-D1.2 LCSC Part Number: C2155106 JLCPCB Part Class: undefined Manufactured by BOURNS

Gas Discharge Tube (GDT) 2003-35-SM-RPLF DIO-DT-SMD_L3.5-W2.8 LCSC Part Number: C2155091 JLCPCB Part Class: undefined Manufactured by BOURNS

Gas Discharge Tube (GDT) CG7120MS DIO-DT-SMD_L3.5-W2.8 LCSC Part Number: C2649808 JLCPCB Part Class: undefined Manufactured by Littelfuse(美国力特)

Gas Discharge Tube (GDT) CG7470MS DIO-DT-SMD_L3.5-W2.8 LCSC Part Number: C2649805 JLCPCB Part Class: undefined Manufactured by Littelfuse(美国力特)