HDC3021DEHR Board Mount Humidity Sensor – Precision RH | Buy Online at XON
HDC3021DEHR Board Mount Humidity Sensors by Texas Instruments
The Texas Instruments HDC3021DEHR is a compact, high-precision digital humidity and temperature device designed for modern embedded electronics. Built for reliability and low power operation, this component delivers accurate environmental measurements in space-constrained PCBs.
As part of the bold: Sensors, Environmental Sensors, Board Mount Humidity Sensors category, the HDC3021DEHR provides stable readings, fast response time, and excellent long-term performance for industrial, HVAC, and IoT applications.
Engineers and designers can source genuine parts directly from Xonelec.
Technical Specifications of HDC3021DEHR
Manufacturer: Texas Instruments
Part Number: HDC3021DEHR
Type: Digital Humidity & Temperature Sensor
Relative Humidity Accuracy: ±2% RH (typ.)
Temperature Accuracy: ±0.2°C (typ.)
Interface: I²C
Supply Voltage: 1.62V – 5.5V
Package: Compact DFN (board mount)
Low Power Consumption
Category: Sensors, Environmental Sensors, Board Mount Humidity Sensors
This device ensures precise sensing performance even in demanding environments.
Key Features of HDC3021DEHR
High accuracy humidity and temperature measurement
Factory calibrated and linearized output
Ultra-low power for battery devices
Small footprint ideal for compact PCBs
Fast response and long-term stability
Integrated heater for condensation removal
These features make it one of the most reliable Sensors, Environmental Sensors, Board Mount Humidity Sensors for professional designs.
Applications of HDC3021DEHR
The sensor is widely used in:
HVAC and air quality systems
Smart home and IoT devices
Industrial automation
Medical equipment
Weather stations
Data loggers and environmental monitoring
In all these systems, Sensors, Environmental Sensors, Board Mount Humidity Sensors ensure accurate climate data for improved control and efficiency.
Working Principle Overview
Humidity Detection:
A capacitive sensing element measures changes in moisture levels.
Temperature Detection:
Integrated bandgap sensor provides precise temperature output.
Digital Output:
Calibrated data is transmitted via I²C directly to the microcontroller.
This integration simplifies PCB design compared to discrete Sensors, Environmental Sensors, Board Mount Humidity Sensors solutions.
Wiring and Connection Overview
Typical I²C Setup:
VCC ? Power Supply
GND ? Ground
SDA ? Data line
SCL ? Clock line
Minimal external components are required, enabling quick integration into embedded systems.
Use Case Scenario – Smart HVAC Controller
Scenario: Smart building climate controller required accurate indoor humidity monitoring.
Problem: Previous sensors drifted over time and increased energy costs.
Solution: HDC3021DEHR installed for precise readings.
Result: Stable humidity control, improved comfort, and reduced power consumption.
This demonstrates why Sensors, Environmental Sensors, Board Mount Humidity Sensors are critical for efficient environmental control.
Download Datasheet
For complete electrical characteristics, timing diagrams, and package drawings, download the official HDC3021DEHR datasheet directly from the XON product page HDC3021DEHR Datasheet (PDF)
Conclusion
The HDC3021DEHR from Texas Instruments combines accuracy, compact size, and low power operation, making it ideal for modern environmental sensing designs. Whether used in HVAC, IoT, or industrial control, it delivers dependable performance and simplified integration.
For genuine components and fast sourcing, choose XON and integrate confidence into your next design.
FAQs – HDC3021DEHR
Q1. What does the HDC3021DEHR measure?
Relative humidity and temperature.
Q2. What interface does it use?
I²C digital communication.
Q3. Is it suitable for battery devices?
Yes, it features very low power consumption.
Q4. Does it require calibration?
No, it comes factory calibrated.
Q5. Where can I buy it online?
Available directly at XON.