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SHT40-AD1B-R3

SHT40-AD1B-R3

Sensirion
Board Mount Humidity Sensors RH/ T Sensor
59,057 in stock
Datasheet Digi-Key Mouser Compare Prices

Overview

The Sensirion SHT40-AD1B-R3 is a high-accuracy, low-power digital humidity and temperature sensor. It features a 16-bit output and communicates via an I2C interface, making it suitable for a wide range of embedded applications. This surface-mount sensor operates over a broad supply voltage range of 1.08V to 3.6V.

Why Choose This Part

Engineers benefit from the SHT40-AD1B-R3's high accuracy of +/-1.8% RH and 16-bit resolution, ensuring precise environmental monitoring. Its wide operating temperature range of -40 degrees C to 125 degrees C and low power consumption (0.08 uA idle) make it robust for diverse applications. The I2C interface with CRC checksum and multiple I2C addresses simplifies integration into existing systems.

Applications

HVAC and Climate Control Systems
Accurate humidity and temperature readings for maintaining optimal indoor environments in residential, commercial, and industrial HVAC systems.
Wearable Devices
Low power consumption and small form factor enable integration into wearables for environmental monitoring or comfort sensing.
IoT and Smart Home Devices
Providing essential environmental data for smart thermostats, air quality monitors, and other connected home automation products.
Medical Devices
Monitoring conditions in medical equipment, incubators, or patient environments where precise humidity and temperature control are critical.
Logistics and Cold Chain Monitoring
Ensuring proper environmental conditions are maintained for sensitive goods during transport and storage, with data logging capabilities.

Key Specifications

Output 16b
Accuracy +/-1.8% RH
Output Type I2C
Sensor Type Humidity, Temperature
Mounting Type Surface Mount
Response Time 4 s
Humidity Range 0 ~ 100% RH
Package / Case 4-WDFN Exposed Pad
Voltage - Supply 1.08V ~ 3.6V
Operating Temperature -40degC ~ 125degC
Supplier Device Package 4-DFN (1.5x1.5)

Getting Started

To get started with the SHT40-AD1B-R3, engineers can utilize various microcontroller development boards that support I2C communication. Libraries and example code are often available for popular platforms like Arduino or Raspberry Pi, simplifying sensor data acquisition. Connect the sensor to the I2C bus (SDA, SCL), power (VDD), and ground (GND), then use the device's I2C address 0x44 for communication.

SHT40 Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number Package Stock
SHT40-AD1B-R3 (this part) WDFN-4 59,057
SHT40-BD1B-R3 (Sensirion AG) UDFN-4 13,394
SHT40-AD1F-R2 (Sensirion AG) WDFN-4 20,597
SHT40-AD1B-R2 WDFN-4 13,387

Also Consider

SHT31-DIS-B2.5KS SENSensirion AG - This is another highly accurate I2C humidity and temperature sensor from the same manufacturer, offering similar performance characteristics.

Categories

Sensors > Humidity Sensors
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