The **TS-N23-R2** is a compact, high-precision NTC (Negative Temperature Coefficient) thermistor sensor assembly commonly used in industrial and medical applications. It is designed for fast response times and stable temperature monitoring. --- ### 1. Key Electronic Specifications The performance of the TS-N23-R2 is defined by its resistance characteristics and thermal properties. | Parameter | Value/Description | | :--- | :--- | | **Sensor Type** | NTC (Negative Temperature Coefficient) | | **Nominal Resistance ($R_{25}$)** | Typically 10kΩ or 50kΩ (varies by sub-spec) | | **Beta Value ($\beta$)** | Often 3950K or 3435K (defines the curve) | | **Operating Temperature** | -40°C to +125°C | | **Accuracy / Tolerance** | ±1% to ±3% (Standard) | | **Response Time** | High-speed (due to small thermal mass) | --- ### 2. Physical Construction The "R2" designation often refers to a specific revision or mechanical housing style (e.g., ring terminal or epoxy-coated lead). * **Thermistor Element:** A ceramic-metal oxide chip that changes electrical resistance based on heat. * **Encapsulation:** Usually protected by a thin layer of epoxy resin or a metal sleeve to prevent moisture ingress. * **Lead Wires:** Standard PTFE or PVC insulated wires (24-30 AWG) depending on the environment. --- ### 3. Electronic Functionality As an NTC device, the TS-N23-R2 functions based on the following principles: 1. **Resistance Decrease:** As the ambient temperature rises, the electrical resistance of the part decreases. 2. **Voltage Divider Circuit:** In an electronic circuit, it is typically paired with a fixed resistor ($R_{fixed}$) to create a voltage divider. 3. **Analog Output:** A Microcontroller (MCU) reads the analog voltage across the thermistor and converts it to a temperature reading using the **Steinhart-Hart Equation**. --- ### 4. Typical Applications * **HVAC Systems:** Monitoring airflow or water temperature. * **Battery Management (BMS):** Ensuring lithium-ion cells do not overheat during charging. * **Medical Devices:** Skin temperature probes or fluid monitoring. * **Home Appliances:** Temperature control in smart kettles or coffee machines.