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SHT40I-HD1B-R2

SENSHT40I-HD1B-R2

Sensirion AG
Humidity, Temperature 0 ~ 100% RH I2C ±2.5% RH 4 s Surface Mount
Active868 in stock
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Overview

The SHT40I-HD1B-R2 is an industrial-grade digital humidity and temperature sensor featuring a 5V supply voltage range (4.5V to 5.5V). It offers calibrated I2C output with a typical accuracy of plus/minus 2.5% RH and is designed to remain fully functional even in condensing environments.

Why Choose This Part

This sensor provides NIST traceability and a wide 4.5V to 5.5V supply range, making it compatible with legacy 5V industrial systems without level shifting. Its 4-WDFN package is extremely compact at 1.5mm x 1.5mm while maintaining high reliability in harsh conditions.

Applications

Industrial HVAC Systems
Climate control in factories where 5V logic and robust environmental resistance are required.
Condensing Environments
Used in equipment where frequent moisture saturation occurs, thanks to its specialized sensor design.
Cold Chain Logistics
Monitoring sensitive goods across an operating temperature range of -40 to 125 degrees Celsius.
Process Automation
Integrating environmental sensing into PLC-based systems using its high-driver-strength I2C interface.

Key Specifications

Accuracy +/-2.5% RH
Output Type I2C
Sensitivity 40mV/%RH
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 4.5V ~ 5.5V
Operating Temperature -40degC ~ 125degC
Supplier Device Package 4-DFN (1.5x1.5)

Getting Started

Communicate with the sensor over I2C at the standard address using any microcontroller supporting 5V logic. For rapid prototyping, seek out SHT4x evaluation kits or breakout boards from Sensirion or major distributors that support the DFN-4 footprint.

Part of Sensirion SHT4x family » SHT40

SHT40 Family

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

Part Number Accuracy Package Voltage Stock
SHT40I-HD1B-R2 (this part) +/-2.5% RH WDFN-4 4.5V 868
SHT40-AD1B-R2 +/-1.8% RH WDFN-4 1.08V 57,564
SHT40-AD1B-R3 +/-1.8% RH WDFN-4 1.08V 30,978
SHT40-BD1B-R3 +/-1.8% RH UDFN-4 1.08V 12,557
SHT40-AD1F-R2 +/-1.8% RH WDFN-4 1.08V 12,260

Also Consider

SHT31-DIS-B SENSensirion AG - A higher accuracy alternative (+/-2% RH) that also supports 5V operation but in a larger 8-DFN package.

Categories

Sensors > Temperature Sensors Sensors > Humidity Sensors Industrial & Automation > Industrial Sensors & Instrumentation