The **HTS-5A-R** is an electronic component primarily classified as a **Humidity and Temperature Sensor**. It is frequently utilized in consumer electronics, HVAC systems, and industrial monitoring due to its compact form factor and reliability. --- ### 1. Key Technical Specifications The HTS-5A-R is designed to provide accurate environmental data. Below are the typical technical parameters: | Feature | Specification | | :--- | :--- | | **Primary Function** | Relative Humidity (RH) & Temperature Sensing | | **Output Type** | Analog (Voltage) or Digital (depending on specific module variant) | | **Humidity Range** | 0% to 100% RH | | **Operating Voltage** | Typically 3.3V to 5.0V DC | | **Package Style** | Through-hole or SMD (Surface Mount Device) | | **RoHS Compliance** | Yes (indicated by the "-R" suffix) | --- ### 2. Core Electronic Components The device functions through a combination of physical sensing elements and signal conditioning circuitry: * **Capacitive Humidity Sensor:** Uses a dielectric polymer film that absorbs or releases water vapor, changing the capacitance of the circuit. * **Thermistor:** A high-precision resistor that changes resistance based on ambient temperature. * **Signal Conditioning IC:** An internal integrated circuit that converts raw analog signals from the sensors into a linear output that a microcontroller (like Arduino or ESP32) can interpret. --- ### 3. Pinout and Integration In a typical application, the HTS-5A-R features a simple pin configuration: 1. **VCC:** Power Supply (Positive). 2. **GND:** Ground (Negative). 3. **OUT/DATA:** The pin that sends the humidity/temperature signal to the controller. 4. **NC (if applicable):** No connection (used for mechanical stability). ### 4. Application Examples The "-R" in the part number usually signifies **RoHS compliance**, meaning it is free from hazardous substances like lead. Common use cases include: * **Weather Stations:** Measuring outdoor/indoor atmospheric conditions. * **Dehumidifiers:** Triggering the compressor when moisture levels exceed a threshold. * **Medical Equipment:** Monitoring environments for sensitive laboratory samples. ---