Carbon Dioxide (CO2) Sensor I²C, Modbus, PWM #Sensor #GasSensor

Humidity, Temperature 0 ~ 100% RH I2C ±2% RH 8 s Surface Mount The SHTC3-TR-2.5KS is a digital humidity and temperature sensor from Sensirion, designed for high accuracy, low power consumption, and compact integration. It utilizes a fully calibrated capacitive humidity sensor and bandgap temperature sensor, providing precise environmental measurements via an I²C interface. The device is optimized for battery-powered and space-constrained applications, featuring ultra-low power consumption and sleep modes, making it ideal for IoT, wearable, and mobile devices. Key Features Relative humidity and temperature sensing in a single package Fully calibrated and linearized digital output I²C interface (up to 1 MHz fast mode) Ultra-low power consumption with sleep mode High accuracy and fast response time Small DFN package for compact designs Factory calibrated, no external calibration required Mechanical Characteristics Package Type: DFN (Dual Flat No-Lead) Package Size: ~2.0 mm × 2.0 mm × 0.75 mm Mounting Type: Surface mount (SMT) Terminals: Bottom pads Electrical Characteristics Supply Voltage (VDD): 1.62 V to 3.6 V Average Supply Current: Measurement: ~170 µA Sleep Mode: ~0.3 µA Interface: I²C (address selectable) Output: Digital (temperature and relative humidity) Sensing Performance Humidity Range: 0 to 100 %RH Humidity Accuracy: ±2 %RH (typical) Temperature Range: -40°C to +125°C Temperature Accuracy: ±0.2°C (typical) Response Time (τ63%): ~8 seconds (humidity) Functional Features Low-power measurement modes (normal and low power) Sleep mode for minimal energy consumption CRC checksum for data integrity Clock stretching support (optional) Environmental Specifications Operating Temperature Range: -40°C to +125°C Storage Temperature Range: -40°C to +125°C Packaging Information Packaging Type: Tape & Reel (TR) Reel Quantity: 2,500 units (2.5KS) Lead-Free / RoHS compliant Typical Applications Wearable devices Smartphones and mobile electronics IoT sensors and nodes Smart home devices (thermostats, air quality monitors) HVAC systems Environmental monitoring #CommonPartsLibrary #Sensor #Transducer #Humidity #Moisture-Sensor

The Grove - CO2 & Temperature & Humidity Sensor (SCD30) is a high precision carbon dioxide sensor, which is based on Sensirion SCD30. The measuring range of this sensor is 0 ppm-40'000 ppm, and the measurement accuracy can reach to ±(30 ppm + 3%) between 400ppm to 10'000ppm.

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

Humidity, Temperature 0 ~ 100% RH I2C ±1.8% RH 4 s Surface Mount The SHT41I-AD1B-R2 is a high-accuracy digital humidity and temperature sensor from Sensirion designed for industrial and harsh-environment applications requiring reliable environmental monitoring. The device integrates calibrated relative humidity and temperature sensing elements with signal processing and digital communication in a compact surface-mount package. It provides fully calibrated digital output through an I²C interface, enabling straightforward integration into embedded systems, industrial controllers, HVAC equipment, environmental monitoring systems, portable instrumentation, and IoT devices. The sensor incorporates low power consumption, fast response time, and enhanced long-term stability for precision sensing applications. Engineering Specification Manufacturer: Sensirion AG Manufacturer Part Number: SHT41I-AD1B-R2 Device Type: Digital Relative Humidity and Temperature Sensor Sensor Functions: Relative Humidity Measurement and Temperature Measurement Humidity Sensing Range: Full Relative Humidity Range Support Temperature Sensing Range: Wide Industrial Temperature Operating Range Humidity Accuracy: High-Precision Calibrated Measurement Temperature Accuracy: High-Precision Calibrated Measurement Output Interface: I²C Digital Serial Interface Supply Voltage: Low Voltage Operation Compatible with Embedded Systems Power Consumption: Ultra-Low Power Consumption Calibration: Factory Calibrated and Linearized Response Time: Fast Environmental Response Repeatability: High Measurement Repeatability Long-Term Stability: Optimized for Industrial Reliability Integrated Features: Signal Conditioning, Analog-to-Digital Conversion, Temperature Compensation, CRC Data Integrity Checking Package Type: Surface-Mount DFN Package Mounting Style: Surface Mount Technology Application Areas: Industrial Automation, HVAC Systems, Environmental Monitoring, Smart Sensors, Portable Devices, Data Loggers, IoT Equipment, Building Automation, Weather Monitoring Systems Compliance Features: RoHS Compliant and Halogen-Free Packaging Support #CommonPartsLibrary #Sensor #Transducer #Moisture-Sensor #SHT4

Temperature Sensor Digital, Local -40°C ~ 125°C 16 b 4-DFN (1.5x1.5) STS40-CD1B-R3 is a high-accuracy digital temperature sensor from Sensirion, designed for precise temperature monitoring in space-constrained and low-power applications. Part of the STS4x series, it features a fully calibrated temperature sensing element with an I²C digital interface, providing reliable measurements over a wide operating temperature range. Its ultra-compact 4-DFN package makes it ideal for IoT devices, wearables, consumer electronics, industrial controls, and battery-powered systems. Key Features High-accuracy temperature measurement (±0.2°C typical at 25°C) Wide operating temperature range: -40°C to +125°C Digital I²C interface for easy MCU integration 16-bit temperature resolution Low operating voltage: 1.08 V to 3.6 V Factory calibrated and linearized output Ultra-small 1.5 mm × 1.5 mm DFN package Low power consumption suitable for battery-powered devices Surface-mount package for automated assembly Robust performance for industrial and consumer applications #STS40 #STS40CD1BR3 #Sensirion #TemperatureSensor #DigitalSensor #I2C #EmbeddedSystems #IoT #IndustrialAutomation #WearableElectronics #EnvironmentalMonitoring #ElectronicsDesign

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

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

Humidity, Temperature 0 ~ 100% RH I2C ±1.8% RH 4 s Surface Mount The SHT41-AD1B-R3 is a high-precision digital humidity and temperature sensor developed by Sensirion. It integrates calibrated sensing elements, analog signal processing, and a digital communication interface within a compact surface-mount package optimized for space-constrained embedded applications. The device is designed for accurate environmental monitoring across industrial, consumer, HVAC, portable electronics, and IoT systems. The sensor utilizes Sensirion CMOSens® technology to provide stable long-term performance, fast response time, and excellent repeatability under varying environmental conditions. Factory calibration enables direct digital output without the need for external calibration circuitry. The integrated I²C interface simplifies system integration with microcontrollers and embedded processors. The SHT41-AD1B-R3 is engineered for low-power operation, making it suitable for battery-powered and energy-efficient designs. Its compact DFN package supports automated assembly processes and high-density PCB layouts. The device also incorporates advanced internal diagnostics and checksum protection to improve communication reliability and data integrity. Features High-accuracy relative humidity sensing High-accuracy temperature measurement Fully calibrated and linearized digital output I²C digital communication interface Low power consumption optimized for portable systems Fast response and measurement conversion time Excellent long-term stability and repeatability Integrated heater functionality for condensation mitigation Wide operating voltage range Compact surface-mount DFN package Factory-trimmed and tested performance High immunity to environmental stress and contamination Low drift over product lifetime Suitable for reflow soldering processes Electrical Characteristics Supply voltage supports low-voltage embedded systems Digital communication compatible with standard I²C hosts Low standby current consumption Optimized active measurement current Integrated CRC data protection for communication integrity Environmental Characteristics Wide operating temperature range Wide relative humidity operating range Designed for high reliability in industrial and consumer environments Resistant to moisture-induced performance degradation Supports long operational lifetime with stable calibration Package Information Compact DFN surface-mount package Moisture-sensitive device suitable for automated assembly RoHS compliant and halogen-free construction Tape-and-reel packaging configuration for production assembly Applications Environmental monitoring systems HVAC and climate control equipment Smart home and IoT devices Portable electronics Industrial automation systems Data loggers and instrumentation Weather monitoring equipment Indoor air quality monitoring Battery-powered sensor nodes Consumer electronic products #commonpartslibrary #sensor #temperature #humidity #environmentalsensor #i2c #embedded #industrial #iot #sensirion

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

Humidity, Temperature 0 ~ 100% RH I2C ±1.8% RH 4 s Surface Mount SHT40 / SHT41 Sensirion SHT4x Series (SHT40 / SHT41 / SHT43 / SHT45) – ultra-low-power digital humidity and temperature sensor with I²C interface. Provides high-accuracy relative humidity (RH) and temperature measurements in a compact 1.5 mm × 1.5 mm DFN package. Features factory calibration, CRC-protected communication, integrated heater, multiple I²C addresses, low current consumption, and optional PTFE membrane protection. Suitable for battery-powered, industrial, consumer, wearable, medical, HVAC, and IoT applications. Search Keywords: SHT4x, SHT40, SHT41, SHT43, SHT45, Sensirion Humidity Sensor, Temperature Sensor, Digital Humidity Sensor, Digital Temperature Sensor, RH Sensor, Relative Humidity Sensor, I2C Sensor, Environmental Sensor, Ultra Low Power Sensor, Precision Humidity Sensor, Precision Temperature Sensor, Industrial Sensor, IoT Sensor, HVAC Sensor, Battery Powered Sensor, DFN4 Sensor Hashtags: #SHT4x #SHT40 #SHT41 #SHT43 #SHT45 #Sensirion #HumiditySensor #TemperatureSensor #RHSensor #EnvironmentalSensor #I2C #I2CSensor #DigitalSensor #LowPowerSensor #IoT #HVAC #WearableElectronics #IndustrialElectronics #EmbeddedSystems #PCBDesign

XIAO Logger HAT - A tiny temperature, humidity and light add-on module for XIAO with RTC and battery voltage monitoring.This little hat add-on for XIAO incorporates a Sensirion SHT40 temperature and humidity sensor, the BH1750 ambient light sensor, a PCF8563 real-time clock for accurate timekeeping, and an enableable voltage divider to keep track of the battery voltage.

The Grove - CO2 & Temperature & Humidity Sensor (SCD30) is a high precision carbon dioxide sensor, which is based on Sensirion SCD30. The measuring range of this sensor is 0 ppm-40'000 ppm, and the measurement accuracy can reach to ±(30 ppm + 3%) between 400ppm to 10'000ppm.

Humidity, Temperature 0 ~ 100% RH I2C ±2% RH 8 s Surface Mount The SHTC3-TR-10KS is an ultra-low-power digital humidity and temperature sensor from Sensirion designed for space-constrained and battery-powered applications such as wearables, mobile devices, IoT sensors, smart home products, and environmental monitoring systems. It integrates calibrated humidity and temperature sensing elements with a digital I²C interface in a compact 2 mm × 2 mm DFN package. Key Features Measures both relative humidity and temperature Humidity accuracy of up to ±2% RH Wide humidity measurement range: 0% to 100% RH Integrated digital I²C interface Ultra-low power consumption optimized for battery-operated devices Supply voltage range: 1.62 V to 3.6 V Compact 4-pin DFN (2 × 2 mm) surface-mount package Fully calibrated and temperature compensated Fast response time suitable for real-time environmental sensing Operating temperature range: −40°C to +125°C Supports sleep and low-power operating modes for portable electronics Typical Applications Wearable devices Smartphones and tablets HVAC and smart thermostats IoT environmental monitoring Home automation systems Portable weather stations Consumer electronics #CommonPartsLibrary #Sensor

Humidity Sensors/Temperature and Humidity Sensors SHT31-DIS-F2.5kS DFN-8_L2.5-W2.5-P0.50-BL-EP LCSC Part Number: C453460 JLCPCB Part Class: Extended Part Manufactured by Sensirion(瑞士盛思锐) Sensirion SHT3x-DIS digital humidity and temperature sensor, fully calibrated and temperature-compensated digital output, 2.15V to 5.5V supply voltage range, I2C interface up to 1MHz with two user-selectable addresses, typical accuracy up to ±1.5%RH and ±0.1°C for SHT35, NIST traceability, fast start-up and measurement time, integrated RH and temperature sensing, tiny 8-pin DFN package with 2.5 x 2.5mm footprint and 0.9mm height. Search Keywords: SHT3x-DIS, Sensirion SHT3x-DIS, SHT30-DIS, SHT31-DIS, SHT35-DIS, SHT3x humidity sensor, Sensirion humidity temperature sensor, digital humidity sensor, digital temperature sensor, I2C humidity sensor, I2C temperature sensor, SHT35 high accuracy sensor, SHT3x DFN-8, 2.5x2.5mm humidity sensor, CMOSens humidity sensor, SHT3x-DIS datasheet Hashtags: #SHT3xDIS #SHT30DIS #SHT31DIS #SHT35DIS #SensirionSHT3x #SensirionSensor #HumiditySensor #TemperatureSensor #HumidityTemperatureSensor #DigitalHumiditySensor #I2CSensor #CMOSensSensor #DFN8Sensor #25x25mmSensor #HighAccuracyHumiditySensor #NISTTraceableSensor

Humidity Sensors/Temperature and Humidity Sensors SHT30-DIS-B10KS DFN-8_L2.5-W2.5-P0.50-BL-EP LCSC Part Number: C2687423 JLCPCB Part Class: undefined Manufactured by Sensirion(瑞士盛思锐)

Pressure Sensor -0.07PSI ~ 0.07PSI (-0.5kPa ~ 0.5kPa) Differential Male - 0.08" (2.00mm) Tube, Dual 16b 16-SMD Module, Dual Top Ports The SDP31-500PA belongs to the SDP3x series and uses Sensirion’s CMOSens® technology to deliver accurate and stable pressure measurements. It is optimized for applications where small size, fast response, and high accuracy are critical. This sensor measures bidirectional differential pressure up to ±500 Pa, making it suitable for airflow and gas flow monitoring systems. It provides a fully calibrated, temperature-compensated digital output via I²C, simplifying integration with microcontrollers. Pressure type: Differential (±500 Pa range) High accuracy: حوالي ±3% of measured value Digital output: I²C interface with 16-bit resolution Fast response time: suitable for real-time measurements No zero-point drift: ensures long-term stability Compact size: ~8.5 × 5.5 × 5.15 mm Low voltage operation: typically 3.0–3.6 V Temperature compensated: reliable from −40°C to +85°C #CommonPartsLibrary #Sensor #SDP3x

Humidity Sensors/Temperature and Humidity Sensors SHTC3-TR-2.5KS SENSORM-SMD_4P-L2.0-W2.0-P1.00 LCSC Part Number: C194656 JLCPCB Part Class: Extended Part Manufactured by Sensirion(瑞士盛思锐)

Pressure Sensors SDP810-125PA-D SENSOR-TH_SDP810-125PA LCSC Part Number: C153055 JLCPCB Part Class: Extended Part Manufactured by Sensirion(瑞士盛思锐)

Temperature Sensors STS31-DIS-2.5KS DFN-8_L2.5-W2.5-P0.50-TL-EP LCSC Part Number: C129803 JLCPCB Part Class: Extended Part Manufactured by Sensirion(瑞士盛思锐)

Temperature Sensors STS30-DIS-2.5KS DFN-8_L2.5-W2.5-P0.50-BL-EP LCSC Part Number: C129802 JLCPCB Part Class: Extended Part Manufactured by Sensirion(瑞士盛思锐)

Pressure Sensors SDP810-500PA-D SENSOR-TH_SDP810-500PA LCSC Part Number: C153056 JLCPCB Part Class: Extended Part Manufactured by Sensirion(瑞士盛思锐)

Gas Sensors SGP30-2.5k DFN-6_L2.5-W2.5-P0.8-BL-EP LCSC Part Number: C514454 JLCPCB Part Class: Extended Part Manufactured by Sensirion(瑞士盛思锐)

Gas Sensors STC31-R3 QFN-12_L3.5-W3.0-P0.80-BL-EP LCSC Part Number: C1513451 JLCPCB Part Class: Extended Part Manufactured by Sensirion(瑞士盛思锐)

Gas Sensors SGPC3-2.5k DFN-6_L2.5-W2.5-P0.8-BL-EP LCSC Part Number: C514455 JLCPCB Part Class: Extended Part Manufactured by Sensirion(瑞士盛思锐)