| Target: | Environment relative humidity,temperature |
| Model: | WHT30 |
| Detection principle: | MEMS capacitive humidity sensor |
| Characteristics: | High accuracy ±3.0% RH and ±0.5℃,Wide power supply voltage range, from 2.0V to 5.5V |
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Description
WHT30 is a new generation of single-chip integrated temperature and humidity sensor developed by Winsen Technology. It is developed based on Winsen Technology's extremely weak signal detection design platform and MEMS process design platform. High-sensitivity MEMS humidity-sensitive elements are integrated on silicon-based CMOS wafers, which can reduce the interference of multi-chip signal transmission, reduce chip area, and improve packaging reliability. It has two IIC addresses for users to choose from, and the IIC communication speed is up to 1MHz. It uses a miniaturized DFN package with 8pin feet, with an outer size of 2.5 mm*2.5 mm and a height of 0.9 mm. This allows WHT30 to be integrated in various applications. In addition, the wide supply voltage range of 2.2V-5.5V allows it to adapt to various power supply environments.
Application
- Home appliance fields: home appliance, humidity control, HVAC, dehumidifiers, smart thermostats, and room monitors etc;
- Industrial fields: automobiles, testing equipment, and automatic control devices;
- Other fields: data loggers, weather stations, medical and other related temperature and humidity detection devices.
Features
- Full temperature and humidity range calibration and temperature compensated digital output
- Wide supply voltage range, from 2.2 V to 5.5 V
- IIC interface, communication speed up to 1MHz
- Two user-selectable addresses
- WHT30 typical accuracy is ±3%RH and ±0.5℃
- Single chip integrated temperature and humidity sensor
- High reliability and long-term stability
- Measure relative humidity in the range of 0-100%RH
- Measure temperature in the range of -45-130℃
- Integrated 16-bit high-precision ADC
- Measurement time as low as 2.5ms
Specifications
| Parameter | Condition | Min | Typical | Max | Unit |
| Resolution | Typical | 0.01 | %RH | ||
| Accuracy error1 | Typical | ±3.0 | %RH | ||
| Max | See figure1 | %RH | |||
| Repeatability | ±0.1 | %RH | |||
| Hysteresis | ±1.0 | %RH | |||
| Non-linear | <0.1 | %RH | |||
| Response time2 | t63% | 8 | s | ||
| Scope of work | extended3 | 0 | 100 | %RH | |
| Prolonged Drift4 | Normal | <0.25 | %RH/yr | ||
Table2 Temperature characteristic
| Parameter | Condition | Min | Typical | Max | Unit |
| Resolution | Typical | 0.015 | °C | ||
| Accuracy error | Typical(-20-100) | ±0.5 | °C | ||
| Max | See figure2 | °C | |||
| Repeatability | 0.24 | °C | |||
| Hysteresis | ±0.1 | °C | |||
| Response time5 | t63% | >2 | s | ||
| Scope of work | extended3 | -45 | 125 | °C | |
| Prolonged Drift | <0.03 | °C/yr | |||
* The description and specifications might be changed without notice. Please contact us for the latest information before placing orders.
Technical Support:
Customized technical design and function, LOGO and package are available without extra charge (including molding fee) for mass volume.
The sensors don't have sleeping mode. It can be set in program if needed.
All Winsen products go through strict inspections and tests to make sure they are 100% qualified before shipping out.
The sensor has been fully tested (not calibrated) before leaving the factory, but the module will be calibrated before leaving the factory.
However, after transportation and storage, the environment conditions change, and the surface of the sensor absorbs moisture, mixed gas, pollution matters, etc. It is recommended that customers perform aging and calibration after sensors become stable according to the program and use occasions of the whole device.
15﹪-90﹪RH without condensation,greater or less than this range or long-term high temperature and high humidity will affect the life of the sensor.
Our sensors are certified with CE, 3C, ROHS, anti-explosion, fire prevention, and coal mining safety according to different applications. And we provide assistance for new certification.
Many factors can cause the sensor to fail such as broken wires in transportation, poisoning, falling off of the sensitive material, damage to the heating wire (device), etc. Please find specific cause in each category with Winsen’s aftersales.
Winsen provides professional consultation and service before and after sales. We will recommend the best fitting sensor for your demand. If you have any problem, don’t hesitate to email us to sales@winsensor.com
Due to high volume of daily incoming emails and time zone difference, we may not be able to reply your emails immediately. But we will reply to your inquiry in 24 business hours.
