DHT20 Humidity and Temperature Module
The DHT20 is an upgraded humidity and temperature sensor featuring a dedicated ASIC sensor chip, a capacitive humidity sensor, and an integrated temperature sensor. It provides digital output via the IC protocol, offering superior performance and stability, especially in high-temperature and high-humidity environments. The DHT20 boasts improved accuracy, faster response times, and a wider measurement range compared to its predecessor, the DHT11. Each unit is rigorously calibrated and tested for large-scale applications.
Product Attributes
- Brand: AOSONG
- Origin: Not specified
- Material: Not specified
- Color: Not specified
- Certifications: Not specified
Technical Specifications
| Parameter | Condition | Min | Typical | Max | Unit | Notes |
|---|---|---|---|---|---|---|
| Humidity Characteristics | ||||||
| Relative Humidity Resolution | - | - | 0.024 | - | %RH | - |
| Relative Humidity Accuracy | - | - | 3 | - | %RH | Based on 3.3V supply at 25C, excludes hysteresis and non-linearity. |
| Relative Humidity Tolerance | Max | See Figure 2 | - | - | %RH | - |
| Relative Humidity Repeatable | - | - | 0.1 | - | %RH | - |
| Relative Humidity Hysteresis | - | - | 1 | - | %RH | - |
| Relative Humidity Nonlinear | - | - | <0.1 | - | %RH | - |
| Response Time (63%) | - | - | <8 | - | s | At 25C and 1 m/s airflow. |
| Scope of Work (Humidity) | Extended | 0 | - | 100 | %RH | Normal range: 0-80%RH. |
| Prolonged Drift (Humidity) | Normal | - | <0.5 | - | %/yr | - |
| Electrical Specifications | ||||||
| Supply Voltage | - | 2.2 | 3.3 | 5.5 | V | - |
| Supply Current (IDD) | Dormancy | - | 250 | - | nA | Based on VCC = 3.3V and T < 60C. |
| Supply Current (IDD) | Measure | - | 980 | - | A | Based on VCC = 3.3V and T < 60C. |
| Power Consumption | Dormancy | - | 0.8 | - | W | Based on VCC = 3.3V and T < 60C. |
| Power Consumption | Measure | - | 3.2 | - | mW | Based on VCC = 3.3V and T < 60C. |
| Communication Standard | - | - | IC protocol | - | - | - |
| Temperature Characteristics | ||||||
| Temperature Resolution | - | - | 0.01 | - | C | - |
| Temperature Accuracy | - | - | 0.5 | - | C | - |
| Temperature Tolerance | Max | See Figure 3 | - | - | C | - |
| Temperature Repeatable | - | - | 0.1 | - | C | - |
| Temperature Hysteresis | - | - | 0.1 | - | C | - |
| Response Time (63%) | 5 - 30 C | - | - | - | s | - |
| Scope of Work (Temperature) | Extended | -40 | - | 80 | C | - |
| Prolonged Drift (Temperature) | Normal | - | <0.04 | - | C /yr | - |
| Package Information | ||||||
| Sensor Model | - | DHT20 | - | - | - | - |
| Package | - | - | Pallet packaging | - | - | 100PCS/Pallet(MAX) |
Application Scenarios
The DHT20 is suitable for a wide range of applications requiring humidity and temperature detection and control, including:
- HVAC systems
- Dehumidifiers
- Testing and inspection equipment
- Consumer products
- Automotive applications
- Automatic control systems
- Data loggers
- Weather stations
- Home appliances
- Humidity control systems
- Medical equipment
2410301747_SparkFun-Electronics-SEN-18364_C3664364.pdf
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