SI7021 (9)

Silicon Labs

SI7021 is available from Silicon Labs at Xecor. Designed for humidity and temperature sensing, the SI7021 offers high accuracy (±2% RH for humidity and ±0.4°C for temperature), low power consumption, and a compact I²C interface. Available in a 6-WDFN Exposed Pad package, it is ideal for applications in IoT, HVAC systems, and consumer electronics. Whether used in smart home devices, industrial monitoring, or wearable technology, this series ensures reliable performance, scalability, and energy efficiency for demanding applications. Xecor is an authorized distributor for Silicon Labs. Please view our extensive selection of the SI7021 series below.

Part Number Description Package Inventory Add To Bom
SI7021-A20-GM1R The SI7021-A20-GM1R is a versatile digital sensor with serial switching functionalities DFN-6 9,562
SI7021-A20-GM1 SILICON LABS - SI7021-A20-GM1 - Humidity/Temperature Sensor, 0% to 100% RH/-40°C to 85°C Range, I2C, Digital, 1.9V to 3.6V, DFN-6 SON-6 7,987
SI7021-A20-GMR High-precision digital sensor for humidity and temperature readings in commercial applications SON-6 6,944
SI7021-A20-IM1R A precise temperature and humidity sensor with digital output via I2C interface, accompanied by a protective cover SON-6 5,694
SI7021-A20-YM1R Humidity and temperature sensor with digital serial interface 6-WDFNExposedPad 7,525
SI7021-A20-IM1 Si7021 Dig RH Temp Sensor Filter Silicon Labs Si7021-A20-IM1 Temperature & Humidity Sensor, -40 → +125 °C, 6-Pin DFN 6-WDFNExposedPad 7,002
SI7021-A20-IM Si7021 Dig RH Temp Sensor Silicon Labs Si7021-A20-IM Temperature & Humidity Sensor, -40 → +125 °C, 6-Pin DFN 6-WDFNExposedPad 6,851
SI7021-A20-GM Silicon Labs Si7021-A20-GM, Temperature & Humidity Sensor -40 → +85 °C ±0.4 °C, ±3 %RH Serial-I2C, 6-Pin DFN 6-WDFNExposedPad 9,937
SI7021-A10-GMR Humidity/Temperature Sensor Digital Serial (I2C) 6-Pin DFN EP T/R 6-WDFNExposedPad 8,642

Key Featrues

High Accuracy Humidity and Temperature Sensing: The sensor provides humidity measurements with an accuracy of ±2% RH and temperature measurements with an accuracy of ±0.4°C. This high level of precision ensures reliable environmental monitoring, making it suitable for applications like HVAC systems, weather stations, and industrial automation where accurate data is critical.
I²C Digital Interface: The sensor utilizes an I²C digital interface for communication, enabling easy integration with microcontrollers and other digital systems. This feature simplifies the design process and reduces the need for additional signal conditioning components, enhancing system efficiency and reducing overall complexity.
Wide Operating Voltage Range (1.9V to 3.6V): The sensor operates across a broad voltage range, making it versatile for use in both low-power and standard applications. This flexibility allows it to be used in battery-powered devices, IoT applications, and other systems with varying power requirements.
Compact 6-Pin DFN Package: The sensor is housed in a small 6-pin DFN (Dual Flat No-Lead) package with dimensions of 3mm x 3mm. Its compact size and surface-mount design make it ideal for space-constrained applications, such as wearable devices, smartphones, and portable electronics.
Wide Operating Temperature Range (-40°C to 85°C): The sensor can operate in extreme temperature conditions, from -40°C to 85°C. This makes it suitable for use in harsh environments, such as automotive, outdoor, and industrial applications, where reliable performance under varying temperatures is essential.

Applications

Environmental Monitoring Systems: The Silicon Labs humidity/temperature sensor is ideal for directly digitizing environmental data in weather stations, greenhouses, or HVAC systems. Its I2C interface and high accuracy (±2% RH) ensure precise monitoring of humidity and temperature, making it suitable for applications requiring real-time environmental control and data logging.
Industrial Process Control: This sensor is well-suited for digitizing signals in industrial environments where precise humidity and temperature monitoring is critical. Its robust design and wide operating temperature range (-40°C to 85°C) make it ideal for use in manufacturing processes, cleanrooms, or food production facilities, ensuring optimal conditions and product quality.
Smart Home Automation: The sensor can be integrated into smart home systems to directly digitize humidity and temperature data for climate control. Its compact DFN package and low power consumption make it perfect for embedding in IoT devices, enabling energy-efficient and responsive heating, ventilation, and air conditioning (HVAC) systems.
Medical and Healthcare Devices: This sensor is ideal for digitizing environmental data in medical devices such as incubators, ventilators, or wearable health monitors. Its high accuracy and fast response time (18 seconds) ensure reliable monitoring of patient environments, contributing to improved healthcare outcomes and patient comfort.