HDC3021DEHR
Analog and Digital Output
Technical Specifications
| Type | Description |
|---|---|
| Working Voltage V | 3.56 V |
| Interface | I2C |
| Humidity Tolerance | +/-0.5%RH |
| Resolution | 16bit |
| Temperature Range | -40°C ~ +125°C |
| Type | Description |
|---|---|
| Humidity | 0%RH~100%RH |
| Temperature Tolerance | +/-0.1°C |
| Current - Supply | 400nA |
| Features | Drift/aging compensation;Built-in heater;Low power drive measurement |
| Package / Case | WSON-8 |
Product Introduction
The HDC302x is an integrated capacitive based relative humidity (RH) and temperature sensor. It provides high accuracy measurements over a wide supply range (1.62V - 5.5V), along with ultra- low power consumption in a compact 2.5mm×2.5mm package. Both the temperature and humidity sensors are 100% tested and trimmed on a production setup that is NIST traceable and verified with equipment that is calibrated to ISO/IEC 17025 standards.
Offset Error Correction reduces RH sensor offset due to aging, exposure to extreme operating conditions, and contaminants to return device to within accuracy specifications. For battery IoT applications, auto measurement mode and ALERT feature enable low system power by maximizing MCU sleep time. There are four different I²C addresses that support speeds up to 1 MHz. A heating element is available to dissipate condensation and moisture.
The HDC3020 is an open cavity package without protective cover. Two device variants have a cover option to protect the open cavity RH sensor: HDC3021 and HDC3022. HDC3021 has removable protective tape to allow conformal coatings and PCB wash. HDC3022 has a permanent IP67 filter membrane to protect against dust, water and PCB wash.
Features
- Relative humidity (RH) sensor:
- Operating range: 0% to 100%
- Accuracy: ± 0.5% typical
- Offset Error Correction: reduces offset to return device to within accuracy specification
- Long-term drift: 0.19% RH / yr
- Condensation protection with integrated heater
- Temperature sensor:
- Operating range: -40℃ to 125℃
- Accuracy: ± 0.1℃ typical
- NIST traceability: relative humidity & temperature
- Low power: average current 0.4μA
- I²C interface compatibility up to 1-MHz speeds
- Four selectable I²C addresses
- Data protection through CRC checksum
- Supply voltage: 1.62V to 5.50V
- Available auto measurement mode
- Programmable interrupts
- Programmable RH and Temp measurement offset
- Factory-installed polyimide tape assembly cover
- Factory-installed IP67 rated environmental cover
Applications
- - Washer & dryer - Refrigerator & freezer - Industrial transport - Cold Chain asset tracking & data logger - IoT environmental sensors - Air quality and gas detection - Humidifier/dehumidifier - Thermostat - CPAP and ventilator - Water leak detector - IP Camera
Datasheet
Alternative Parts
Common HDC3021DEHR alternatives overseas buyers search for:
Compliance & Export Codes
| Type | Details |
|---|---|
| RoHS | ROHS3 |
| ECCN | EAR99 |
| CNHTS | 9025800090 |
| USHTS | 9025801000 |
| TARIC | 9025802000 |
| Type | Details |
|---|---|
| CAHTS | 9025800000 |
| BRHTS | 90258000 |
| INHTS | 90258090 |
| MXHTS | 9025.80.01 |
Sourcing Information
Need HDC3021DEHR from Texas Instruments for your next order? SZ Procure provides local sourcing support in Shenzhen — we help buyers check supplier availability, compare quotations, and coordinate procurement for China-sourced components.
Our Shenzhen sourcing team can help with supplier sourcing, availability checks and quotation comparison for HDC3021DEHR, then coordinate procurement, supplier screening, inspection and international shipping based on what you need.
Need HDC3021DEHR? Send us your required quantity and specifications for a sourcing check and quotation.