| PartNumber | SI7021-A20-GM | SI7021-A20-GM1 | SI7021-A20-GM1R |
| Description | Board Mount Humidity Sensors Digital I2C 2% RH + temp sensor | Board Mount Humidity Sensors Digital I2C 2% RH + temp sensor + cover | SENS HUMID/TEMP 3.6V I2C 2% 6DFN |
| Manufacturer | Silicon Laboratories | Silicon Laboratories | - |
| Product Category | Board Mount Humidity Sensors | Board Mount Humidity Sensors | - |
| RoHS | Y | Y | - |
| RH Range | 0 % to 100 % | 0 % to 100 % | - |
| RH Accuracy | +/- 3 % | +/- 3 % | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Output Type | Digital | Digital | - |
| Interface Type | I2C | I2C | - |
| Resolution | 12 bit | 12 bit | - |
| Full Temp Accuracy | +/- 0.4 C | +/- 0.4 C | - |
| Operating Supply Current | 150 uA | 150 uA | - |
| Supply Voltage Min | 1.9 V | 1.9 V | - |
| Supply Voltage Max | 3.6 V | 3.6 V | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 125 C | + 125 C | - |
| Package / Case | DFN-6 | DFN-6 | - |
| Packaging | Tube | Cut Tape | - |
| Description/Function | I2C humidity and temperature sensor | I2C humidity and temperature sensor | - |
| Product | Board Mount | Board Mount | - |
| Series | SI7021 | SI7021 | - |
| Brand | Silicon Labs | Silicon Labs | - |
| Moisture Sensitive | Yes | Yes | - |
| Product Type | Humidity Sensors | Humidity Sensors | - |
| Factory Pack Quantity | 100 | 100 | - |
| Subcategory | Sensors | Sensors | - |
| Unit Weight | 0.000847 oz | 0.000847 oz | - |