Changsha Purple Horn E-Commerce Co., Ltd.
| Humidity Tolerance | ±3%RH |
| Temperature Range | -40℃~+125℃ |
| Humidity | 0%RH~100%RH |
| Temperature Tolerance | ±0.4℃ |
| Description | ±3%RH -40℃~+125℃ 0%RH~100%RH DFN-6-EP(3x3) Humidity, Moisture Sensors RoHS |
| Mfr. Part # | SI7021-A20-GM1R |
| Package | DFN-6-EP(3x3) |
| Model Number | SI7021-A20-GM1R |
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Product Specification
| Humidity Tolerance | ±3%RH | Temperature Range | -40℃~+125℃ |
| Humidity | 0%RH~100%RH | Temperature Tolerance | ±0.4℃ |
| Description | ±3%RH -40℃~+125℃ 0%RH~100%RH DFN-6-EP(3x3) Humidity, Moisture Sensors RoHS | Mfr. Part # | SI7021-A20-GM1R |
| Package | DFN-6-EP(3x3) | Model Number | SI7021-A20-GM1R |
The Si7021 I2C Humidity and Temperature Sensor is a monolithic CMOS IC that integrates humidity and temperature sensor elements, an analog-to-digital converter, signal processing, calibration data, and an I2C Interface. It is factory-calibrated for interchangeability and features low-power, monolithic CMOS sensor ICs with low drift and hysteresis, and excellent long-term stability. Available in a 3x3 mm DFN package, it offers a drop-in upgrade for existing RH/temperature sensors with precision sensing over a wider range and lower power consumption. The optional factory-installed cover protects the sensor from liquids and particulates. This sensor is ideal for measuring humidity, dew-point, and temperature in various applications including HVAC/R, thermostats, respiratory therapy, white goods, indoor weather stations, micro-environments/data centers, automotive climate control, asset tracking, and mobile devices.
| Parameter | Symbol | Test Condition | Min | Typ | Max | Unit |
| Power Supply | VDD | 1.9 | 3.6 | V | ||
| Operating Temperature (I and Y grade) | TA | 40 | +125 | C | ||
| Operating Temperature (G grade) | TA | 40 | +85 | C | ||
| Input Voltage High (SCL, SDA) | VIH | 0.7xVDD | V | |||
| Input Voltage Low (SCL, SDA) | VIL | 0.3xVDD | V | |||
| Input Voltage Range (SCL, SDA) | VIN | with respect to GND | 0.0 | VDD | V | |
| Input Leakage (SCL, SDA) | IIL | 1 | A | |||
| Output Voltage Low (SDA) | VOL | IOL = 2.5 mA; VDD = 3.3 V | 0.6 | V | ||
| Output Voltage Low (SDA) | VOL | IOL = 1.2 mA; VDD = 1.9 V | 0.4 | V | ||
| Current Consumption (RH conversion) | IDD | 150 | 180 | A | ||
| Current Consumption (Temp conversion) | IDD | 90 | 120 | A | ||
| Current Consumption (Standby, 40 to +85 C) | IDD | No conversion or I2C transaction | 0.06 | 0.62 | A | |
| Current Consumption (Standby, 40 to +125 C) | IDD | No conversion or I2C transaction | 0.06 | 3.8 | A | |
| Peak Current Consumption (powerup) | IDD | 3.5 | 4.0 | mA | ||
| Peak Current Consumption (I2C operations) | IDD | 3.5 | 4.0 | mA | ||
| Heater Current | IHEAT | HTRE bit enabled | 3.1 to 94.2 | mA | ||
| Conversion Time (12-bit RH) | tCONV | 10 | 12 | ms | ||
| Conversion Time (11-bit RH) | tCONV | 5.8 | 7 | ms | ||
| Conversion Time (10-bit RH) | tCONV | 3.7 | 4.5 | ms | ||
| Conversion Time (8-bit RH) | tCONV | 2.6 | 3.1 | ms | ||
| Conversion Time (14-bit temperature) | tCONV | 7 | 10.8 | ms | ||
| Conversion Time (13-bit temperature) | tCONV | 4 | 6.2 | ms | ||
| Conversion Time (12-bit temperature) | tCONV | 2.4 | 3.8 | ms | ||
| Conversion Time (11-bit temperature) | tCONV | 1.5 | 2.4 | ms | ||
| Powerup Time (VDD 1.9 V to ready, 25 C) | tPU | 18 | 25 | ms | ||
| Powerup Time (VDD 1.9 V to ready, full temp range) | tPU | 80 | ms | |||
| Powerup Time (after software reset) | tPU | 5 | 15 | ms | ||
| SCLK Frequency | fSCL | 400 | kHz | |||
| SCL High Time | tSKH | 0.6 | s | |||
| SCL Low Time | tSKL | 1.3 | s | |||
| Start Hold Time | tSTH | 0.6 | s | |||
| Start Setup Time | tSTS | 0.6 | s |
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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