Board Mount Humidity Sensors Intermediate Humidity and Temperature Sensor Humidity, Temperature 0 ~ 100% RH I2C ±1.8% RH 4 s Surface Mount The SHT41-AD1B-R2 is a fully calibrated, low-power environmental sensor that measures relative humidity (RH) and temperature. It integrates sensing elements, signal processing, and a digital interface into a small surface-mount package, making it ideal for space-constrained designs. Key Features Sensor Type: Digital humidity and temperature sensor Interface: I²C (easy MCU integration) Supply Voltage: ~1.08 V to 3.6 V Humidity Accuracy: up to ±1.8% RH (typical) Temperature Accuracy: up to ±0.2 °C (typical) Response Time: Fast measurement and low latency Power Consumption: Ultra-low, suitable for battery devices Package: DFN (compact, ~1.5 × 1.5 mm) Factory Calibration: No external calibration required Functional Overview The sensor uses capacitive humidity sensing combined with a bandgap temperature sensor. Internal electronics convert these measurements into digital data via I²C, eliminating the need for external ADCs or complex signal conditioning. Design Advantages Small footprint for compact PCBs Low power consumption for IoT and portable devices High reliability with long-term stability Fast response time for real-time monitoring Simple integration with microcontrollers Typical Applications IoT and smart home devices HVAC and climate control systems Wearables and portable electronics Industrial monitoring systems Environmental data logging #CommonPartsLibrary #Sensors,-Transducer #Humidity #Moisture-Sensor #SHT4x

Humidity, Temperature 0 ~ 100% RH I2C ±1% RH 4 s Surface Mount #CommonPartsLibrary #sensor #SHT4x #Transducer #Moisture Sensors

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

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