TH09C High-Accuracy Relative Humidity & Temperature Sensor
The TH09C is an ultra-compact digital relative humidity and temperature sensor integrating a precision RH sensing element and a high-accuracy temperature sensor within a miniature 2.0 x 2.0 x 0.75 mm QFN4 package. Featuring a standard I²C slave interface, ultra-low 40nA sleep current, and an operating voltage down to 1.71V, it provides calibrated climate measurement for HVAC, smart home appliances, IoT, and battery-critical wearables.
±0.15°C (Typ.)
±2.0% RH (Typ.)
0% ~ 100% RH
1.71V to 3.6V DC
40 nA Ultra-Low
2.0 x 2.0 x 0.75 mm
| Product Model | TH09C |
| Sensor Type | Integrated digital relative humidity (RH) and high-accuracy temperature sensor |
| Digital Interface | I²C slave interface for seamless integration with external microcontrollers / processors |
| Power Consumption | 40 nA sleep current; wide operational supply voltage range from 1.71V to 3.6V |
| Mechanical Package | Surface-mount QFN4 encapsulation (2.0 x 2.0 x 0.75 mm) |
| Target Applications | Building automation, smart thermostats, demand-controlled ventilation (DCV), indoor air quality (IAQ), air purifiers, refrigerators, home appliances, wearable tech, mobile devices, weather stations, and battery-powered IoT nodes |
Serial to Ethernet Converter USR-N520-H7 





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