Humidity, Temperature 0 ~ 100% RH I2C ±1.8% RH Surface Mount SHT4x is a digital sensor platform for measuring relative humidity and temperature at different accuracy classes. Its I2C interface provides several preconfigured I2C addresses while maintaining an ultra-low power budget (0.4 μW). The power-trimmed internal heater can be used at three heating levels thus enabling sensor operation in demanding environments. The four-pin dual-flat-no-leads package is suitable for surface mount technology (SMT) processing and comprises an optional on-package patented PTFE membrane or a removable protective cover. Sensor specific calibration certificates according to ISO17025, identifiable through unique serial numbers, are available. • Accuracies ΔRH = ±1.0 %RH, ΔT = ±0.1 °C • VDD = 1.08 V … 3.6 V • Avg. current: 0.4 µA, Idle current: 80 nA • I2C FM+, CRC checksum, multip. I2C addr. • Patented protection options1 , PTFE membrane and removable protective cover • Operating range: 0 … 100 %RH, −40…125 °C • Fully functional in a condensing environment • Power heater, true NIST-traceability • JEDEC JESD47 qualification • Sensor-specific calibration certificate acc. to ISO 17025: 2017, 3-point temp. calibration #CommonPartsLibrary #Sensor

Air Quality Sensor CO2 Sensor 2.5V/3.3V/5V 20-Pin SMD EP T/R The SCD41-D-R1 is a miniature photoacoustic carbon dioxide sensor module developed by Sensirion for high-accuracy environmental sensing applications. The device integrates a CO₂ sensing element, temperature sensor, humidity sensor, optical components, calibration memory, and digital signal processing into a compact surface-mount package suitable for embedded systems and portable electronics. The sensor utilizes photoacoustic sensing technology to provide precise carbon dioxide concentration measurements while maintaining low power consumption and long-term stability. Integrated humidity and temperature sensing capabilities enable environmental compensation and simplify system integration by reducing the need for external sensors. The SCD41 communicates through a standard I²C digital interface and supports automatic self-calibration functions for reliable long-term operation. Its compact footprint and low energy requirements make it suitable for battery-powered devices, smart building systems, HVAC equipment, indoor air quality monitoring systems, and IoT applications. The module is factory calibrated and designed for continuous monitoring of indoor air quality conditions. The integrated architecture minimizes external component requirements while enabling accurate sensing performance across a wide operating range. Key Features Photoacoustic CO₂ sensing technology Integrated temperature and humidity sensing High accuracy carbon dioxide measurement I²C digital communication interface Low power consumption operation Automatic self-calibration support Compact surface-mount package Factory calibrated output Long-term measurement stability Optimized for indoor air quality applications Low-profile PCB mounting design RoHS and halogen-free compliant Electrical Characteristics Low-voltage supply operation Low average current consumption suitable for portable devices Integrated digital signal processing Non-volatile calibration memory Standard I²C communication compatibility Stable operation across industrial environmental conditions Mechanical Characteristics Compact SMD package for space-constrained applications Surface-mount assembly compatible Low-profile package structure Integrated optical cavity and sensing chamber Moisture-sensitive device requiring controlled handling during assembly Functional Characteristics Real-time carbon dioxide concentration monitoring Simultaneous temperature and humidity measurement Automatic environmental compensation Continuous and periodic measurement modes Fast startup and measurement response Long operational lifetime with stable calibration Optimized airflow design for accurate sensing Suitable for continuous indoor environmental monitoring Typical Applications Indoor air quality monitoring systems Smart thermostats and HVAC controllers Building automation equipment Demand-controlled ventilation systems Portable environmental monitoring devices Smart home and IoT products Air purification systems Occupancy and ventilation monitoring Battery-powered sensing devices Consumer and industrial environmental monitoring equipment #commonpartslibrary #sensor #airquality

Air Quality Sensor CO2 Sensor 2.5V/3.3V/5V 20-Pin SMD EP T/R The SCD41-D-R1 is a miniature photoacoustic carbon dioxide sensor module developed by Sensirion for high-accuracy environmental sensing applications. The device integrates a CO₂ sensing element, temperature sensor, humidity sensor, optical components, calibration memory, and digital signal processing into a compact surface-mount package suitable for embedded systems and portable electronics. The sensor utilizes photoacoustic sensing technology to provide precise carbon dioxide concentration measurements while maintaining low power consumption and long-term stability. Integrated humidity and temperature sensing capabilities enable environmental compensation and simplify system integration by reducing the need for external sensors. The SCD41 communicates through a standard I²C digital interface and supports automatic self-calibration functions for reliable long-term operation. Its compact footprint and low energy requirements make it suitable for battery-powered devices, smart building systems, HVAC equipment, indoor air quality monitoring systems, and IoT applications. The module is factory calibrated and designed for continuous monitoring of indoor air quality conditions. The integrated architecture minimizes external component requirements while enabling accurate sensing performance across a wide operating range. Key Features Photoacoustic CO₂ sensing technology Integrated temperature and humidity sensing High accuracy carbon dioxide measurement I²C digital communication interface Low power consumption operation Automatic self-calibration support Compact surface-mount package Factory calibrated output Long-term measurement stability Optimized for indoor air quality applications Low-profile PCB mounting design RoHS and halogen-free compliant Electrical Characteristics Low-voltage supply operation Low average current consumption suitable for portable devices Integrated digital signal processing Non-volatile calibration memory Standard I²C communication compatibility Stable operation across industrial environmental conditions Mechanical Characteristics Compact SMD package for space-constrained applications Surface-mount assembly compatible Low-profile package structure Integrated optical cavity and sensing chamber Moisture-sensitive device requiring controlled handling during assembly Functional Characteristics Real-time carbon dioxide concentration monitoring Simultaneous temperature and humidity measurement Automatic environmental compensation Continuous and periodic measurement modes Fast startup and measurement response Long operational lifetime with stable calibration Optimized airflow design for accurate sensing Suitable for continuous indoor environmental monitoring Typical Applications Indoor air quality monitoring systems Smart thermostats and HVAC controllers Building automation equipment Demand-controlled ventilation systems Portable environmental monitoring devices Smart home and IoT products Air purification systems Occupancy and ventilation monitoring Battery-powered sensing devices Consumer and industrial environmental monitoring equipment #commonpartslibrary #sensor #airquality

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

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

3-in-1 sensor, humidity, pressure, temperature, I2C and SPI interface, 1.71-3.6V, LGA-8 Bosch pressure humidity temperature environment environmental measurement digital *LGA*2.5x2.5mm*P0.65mm*Clockwise*

4-in-1 sensor, gas, humidity, pressure, temperature, I2C and SPI interface, 1.71-3.6V, LGA-8 Bosch gas pressure humidity temperature environment environmental measurement digital *LGA*3x3mm*P0.8mm*Clockwise*

Humidity, Pressure, Temperature 0 ~ 100% RH I²C, SPI ±3% 1 s Surface Mount The BME280 integrates three sensors—temperature, relative humidity, and pressure—along with a high-performance digital interface. It communicates via I²C or SPI, making it easy to interface with microcontrollers like Arduino, ESP32, and STM32. It is designed for low power consumption, making it suitable for battery-powered applications such as portable weather stations and smart home devices. Key Features Environmental Sensing Measures: Temperature Relative Humidity Barometric Pressure Enables altitude estimation based on pressure readings High Accuracy Temperature: ±1.0°C (typical) Humidity: ±3% RH (typical) Pressure: ±1 hPa (typical) Low Power Consumption Typical current: ~0.6 µA (sleep mode) ~3.6 µA (measurement mode) Ideal for battery-operated devices Communication Interfaces Supports: I²C (up to 3.4 MHz) SPI (3-wire / 4-wire) Easy integration with most microcontrollers Compact Package Small footprint: 2.5 × 2.5 × 0.93 mm LGA package Suitable for space-constrained designs Built-in Features Factory-calibrated coefficients stored in NVM Configurable oversampling and filtering Integrated ADC for high-resolution measurements #commonpartslibrary #sensor #humidity #pressure