Parts Sensors Temperature Sensors SHTC3 Family SHTC3 SHTC3

SHTC3

Name: SHTC3
Brand: Sensirion

Sensirion

Board Mount Humidity Sensors Humidity and Temperature Sensor

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Overview

The SHTC3 is a digital humidity and temperature sensor designed specifically for high-volume consumer electronics and battery-powered applications. It features a wide supply voltage range from 1.62V to 3.6V and communicates via a standard I2C interface in a compact 2mm x 2mm DFN package. This sensor is fully calibrated and provides high precision with a 2 percent relative humidity accuracy tolerance.

Why Choose This Part

The primary advantage is its extreme power efficiency, drawing only 0.6 microamps during sleep and as little as 270 microamps in low power mode. Its small 4-pin DFN package and 1.62V minimum VDD make it compatible with modern low-voltage microcontrollers without needing level shifters. Additionally, the NIST-traceable calibration ensures reliable performance across the full -40 to 125 degrees Celsius operating range.

Applications

Mobile Devices

Integration into smartphones and tablets for environmental monitoring and internal thermal management.

Wireless IoT Nodes

Perfect for battery-operated remote sensors where ultra-low power consumption and sleep states are critical.

Smart Home Appliances

Embedded humidity control for HVAC thermostats, air purifiers, and humidifier systems.

Wearable Technology

Compact footprint and low voltage requirements allow for placement in fitness trackers and wellness devices.

Getting Started

To begin prototyping, engineers should use the Sensirion SEK-SHTxx evaluation kits or connect the sensor to an MCU via the I2C bus using standard 10k pull-up resistors. Sensirion provides comprehensive C libraries and drivers on GitHub to handle the measurement triggering and CRC checksum verification. Ensure the sensor is placed away from heat sources on the PCB to maintain measurement accuracy.

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