Changsha Purple Horn E-Commerce Co., Ltd.
| Description | DFN-6(3x3) Humidity, Moisture Sensors RoHS |
| Mfr. Part # | SI7021-A20-IM1 |
| Package | DFN-6(3x3) |
| Model Number | SI7021-A20-IM1 |
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Product Specification
| Description | DFN-6(3x3) Humidity, Moisture Sensors RoHS | Mfr. Part # | SI7021-A20-IM1 |
| Package | DFN-6(3x3) | Model Number | SI7021-A20-IM1 |
The Si7021-A20 is a monolithic CMOS IC that integrates humidity and temperature sensor elements, an analog-to-digital converter, signal processing, and calibration data with an I2C interface. It features patented low-K polymeric dielectrics for humidity sensing, ensuring low power consumption, minimal drift and hysteresis, and excellent long-term stability. The sensor is factory-calibrated and fully interchangeable. Available in a 3x3 mm DFN package, it serves as a drop-in upgrade for existing RH/temperature sensors, offering enhanced precision and lower power. An optional factory-installed cover provides protection against liquids and particulates. This device is ideal for measuring humidity, dew-point, and temperature in a wide range of applications.
| Parameter | Symbol | Test Condition | Min | Typ | Max | Unit |
| Relative Humidity Sensor Accuracy | 080% RH | 3 | % RH | |||
| High Accuracy Temperature Sensor | 10 to 85 C | 0.4 | C | |||
| Operating Range (RH) | 0 | 100 | % RH | |||
| Operating Range (Temperature) | 40 | +125 | C | |||
| Operating Voltage | VDD | 1.9 | 3.6 | V | ||
| Low Power Consumption | Active Current | RH conversion | 150 | 180 | A | |
| Standby Current | 0.06 | 0.62 | A | |||
| I2C Interface Speed | fSCL | 400 | kHz | |||
| Conversion Time (12-bit RH) | tCONV | 10 | 12 | ms | ||
| Conversion Time (14-bit Temperature) | tCONV | 7 | 10.8 | ms | ||
| Powerup Time | tPU | From VDD 1.9 V to ready for a conversion, 25 C | 18 | 25 | ms |
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Agent,Importer
Year Established:
2009
Employee Number:
300~500
Ecer Certification：
Verified Supplier
Changsha Purple Horn E-Commerce Co., Ltd.. is a professional company focus on integrated circuit ic business. Purple Horn will also responsible with exporting and logistic business. there is professional factory Beijing Silk Road which focus on desigining and manufacture. Founded in 2009, Our compa... Changsha Purple Horn E-Commerce Co., Ltd.. is a professional company focus on integrated circuit ic business. Purple Horn will also responsible with exporting and logistic business. there is professional factory Beijing Silk Road which focus on desigining and manufacture. Founded in 2009, Our compa...
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