SKU: SENS-3512
📋 GST Invoice Available

Sensirion SHT20 Humidity & Temperature Sensor, 0 to 100%RH, −40°C to +125°C, ±3%RH, I²C Interface, DFN Package

₹135.00 (Inclusive of all taxes)
Out of Stock

The Sensirion SHT20 is a fully calibrated digital humidity and temperature sensor with an I²C interface, designed for seamless integration into 3.3V systems like Arduino, Raspberry Pi, ESP32, and industrial data loggers. It provides accurate environmental monitoring across a wide operating range.

Features

  • High-accuracy digital sensor with ±3% RH and ±0.3°C typical performance.
  • I²C digital interface for direct connection to microcontrollers and SBCs.
  • Wide operating range from 0 to 100% RH and -40°C to +125°C.
  • Ultra-low power consumption ideal for battery-powered and portable devices.
  • DFN (Dual Flat No-lead) SMD package suitable for reflow soldering.

Out of stock

Description

The SHT20 from Sensirion integrates a capacitive humidity sensor and a band-gap temperature sensor on a single CMOSens® chip, providing calibrated, linearized digital outputs. The sensor’s advanced analog and digital signal processing ensures excellent long-term stability and minimal drift.

Housed in a compact, reflow-solderable DFN package, the SHT20 is built for high-volume assembly and reliable operation in diverse environments, from HVAC systems to industrial monitoring. Its low voltage operation (2.1V to 3.6V) makes it compatible with modern 3.3V logic systems.

Key Features

  • Dual-Parameter Sensing: Provides simultaneous, calibrated digital readings for relative humidity and temperature.
  • High Accuracy & Stability: Delivers ±3% RH accuracy with excellent long-term performance for reliable data logging.
  • Standard I²C Interface: Features a simple two-wire communication protocol for easy system integration.
  • Wide Operating Ranges: Functions across the full 0-100% RH spectrum and an extended -40°C to +125°C temperature range.
  • Optimized Power Profile: Engineered for ultra-low power consumption, supporting energy-sensitive applications.
  • Industrial-Grade Robustness: The DFN package and CMOSens technology ensure reliability in demanding environmental conditions.
  • Reflow-Solderable: DFN SMD package is compatible with standard surface-mount assembly processes.

Applications

  • HVAC system climate control and energy management.
  • Weather stations and environmental monitoring networks.
  • Industrial process monitoring and data loggers.
  • Portable handheld measurement instruments.
  • Smart home automation and indoor air quality systems.

Technical Specifications

Manufacturer Part NumberSHT20
Sensor TypeHumidity & Temperature
Humidity Range0 to 100 %RH
Humidity Accuracy±3 %RH
Temperature Range-40 °C to +125 °C
InterfaceI²C
Supply Voltage2.1 to 3.6 V DC
Operating Temperature-40 °C to +125 °C
Package TypeDFN (SMD/SMT)
Mounting StyleSMD/SMT

Frequently Asked Questions

What is the operating voltage range for the SHT20 sensor?

The SHT20 operates from 2.1V to 3.6V DC. It is designed for 3.3V logic systems and is not 5V tolerant. For use with 5V microcontrollers like some Arduino boards, a logic level converter or voltage divider is required on the I²C lines.

How do I connect and communicate with the SHT20 using I²C?

Connect the SHT20's VDD to 3.3V, GND to ground, SDA to the microcontroller's SDA line, and SCL to the SCL line. Pull-up resistors (typically 4.7kΩ) are required on both SDA and SCL lines to 3.3V. Communication follows the standard I²C protocol; the device address is 0x40.

What is the accuracy and response time of the SHT20?

The humidity accuracy is ±3% RH. The temperature accuracy is typically ±0.3°C. The sensor has a fast response time, with a typical time constant (tau 63%) of 8 seconds for humidity. It supports different measurement resolutions and modes to balance speed and accuracy.

Is the SHT20 sensor calibrated, and can it be used outdoors?

Yes, the SHT20 is fully factory calibrated, providing digital output with high long-term stability. Its operating range of -40°C to +125°C and 0-100% RH makes it suitable for outdoor and harsh environments, though proper IP-rated enclosureing is recommended for direct exposure.

Package Includes

  • 1 x Sensirion SHT20 Humidity & Temperature Sensor Module

Additional Information

Weight 0.02 kg
Dimensions 1.1 × 0.9 × 0.5 cm