Sensirion SHT31-DIS-B Digital Temperature & Humidity Sensor, I²C Interface, 2.15–5.5VDC

Name: Sensirion SHT31-DIS-B Digital Temperature &amp; Humidity Sensor, I²C Interface, 2.15–5.5VDC
Brand: Sensirion
SKU: SENS-3496
Price: 389.00 INR
Availability: OutOfStock

₹389.00 (Inclusive of all taxes)

Out of Stock

The Sensirion SHT31-DIS-B is a high-precision digital humidity and temperature sensor with an I²C interface, designed for integration with microcontrollers like Arduino, Raspberry Pi, ESP32, and STM32. It delivers calibrated measurements from –40°C to 125°C and 0–100% RH with excellent long-term stability.

Features

High Accuracy: ±2% RH and ±0.2°C typical measurement precision.
Wide Voltage Range: Operates from 2.15V to 5.5V DC for flexible system integration.
Fast Digital Interface: I²C communication up to 1 MHz for rapid data acquisition.
Fully Calibrated & Compensated: Factory-calibrated digital output with temperature compensation.
Ultra-Low Power: Features a 0.2 µA idle mode for battery-sensitive applications.

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Description

The SHT31-DIS-B from Sensirion is a next-generation digital sensor based on the company’s proven CMOSens® technology, which combines the sensor element, signal processing, and digital calibration on a single chip. This integration ensures high signal quality, minimal noise, and outstanding long-term stability. The sensor provides fully linearized, temperature-compensated digital outputs for both relative humidity and temperature.

Designed for demanding environments, it operates across an extended temperature range from –40°C to 125°C. Its fast response time and support for high-speed I²C communication make it suitable for real-time monitoring systems, HVAC controls, data loggers, and portable devices where power efficiency and reliability are critical.

Key Features

High-Precision Sensing: Delivers typical accuracy of ±2% RH and ±0.2°C with excellent repeatability.
Broad Operating Range: Functions from –40°C to 125°C and 0–100% RH.
Optimized Power Profile: Ultra-low 0.2 µA idle current and configurable measurement cycles.
Robust Digital Output: Fully calibrated, linearized, and temperature-compensated I²C signal.
Fast Response Dynamics: Humidity response time of 6 seconds, temperature response >2 seconds.
Compact DFN Package: Space-saving 8-pin Dual Flat No-Lead (DFN) surface-mount design.
High-Noise Immunity: Integrated signal conditioning and digital filtering.
Long-Term Stability: Minimal drift over time, ensuring reliable performance in continuous monitoring.

Applications

HVAC and Building Automation: Precise climate control and indoor air quality monitoring.
Industrial Process Monitoring: Environmental sensing in manufacturing and storage facilities.
Portable Data Loggers: Battery-powered field measurement devices.
Medical and Laboratory Equipment: Stable environmental monitoring for sensitive instruments.
Consumer Electronics: Smart home devices, wearables, and appliances requiring reliable sensing.

Technical Specifications

Manufacturer Part Number	SHT31-DIS-B
Sensor Type	Digital Humidity & Temperature
Humidity Range	0 to 100% RH
Humidity Accuracy	±2% RH (typical)
Temperature Range	–40°C to 125°C
Temperature Accuracy	±0.2°C (typical)
Supply Voltage	2.15 VDC to 5.5 VDC
Communication Interface	I²C (up to 1 MHz)
Average Current Consumption	~0.2 µA (idle mode)
Response Time (Humidity)	6 s (typical)
Response Time (Temperature)	>2 s (typical)
Package Type	8-pin DFN
Dimensions (L x W)	3.0 mm x 3.0 mm
Operating Temperature	–40°C to 125°C

Frequently Asked Questions

What is the operating voltage range for the SHT31-DIS-B sensor?

The SHT31-DIS-B operates from a wide supply voltage range of 2.15V to 5.5V DC. This makes it compatible with both 3.3V and 5V logic systems commonly found on platforms like Arduino, Raspberry Pi, and ESP32 without requiring a level shifter.

How do I communicate with this sensor, and what is the maximum I²C speed?

Communication is via a standard I²C (I2C) digital interface. The sensor supports a fast mode of up to 1 MHz, allowing for high-speed data acquisition. The I²C address is factory-set, and the protocol details are provided in the Sensirion datasheet.

Is the sensor calibrated, and what is its long-term stability?

Yes, the SHT31-DIS-B is fully factory-calibrated and provides linearized, temperature-compensated digital outputs. Sensirion's CMOSens® technology ensures excellent long-term stability with minimal drift, making it suitable for applications requiring reliable measurements over extended periods without frequent recalibration.

What is the physical size and package type of this sensor?

The sensor is housed in a compact, surface-mount 8-pin DFN (Dual Flat No-Lead) package measuring just 3.0 mm x 3.0 mm. This ultra-small footprint is designed for space-constrained PCB designs in portable or miniaturized electronics.