The **W2TS-2B2-R2/K** is a specific model identifier typically associated with **high-precision industrial temperature sensors**, specifically **Platinum Resistance Temperature Detectors (RTDs)**. These are often used in semiconductor manufacturing, laboratory equipment, and high-end industrial thermal control. Below is a breakdown of the electronic components and technical specifications related to this part. --- ### 1. Technical Specifications | Feature | Specification | | :--- | :--- | | **Sensor Type** | RTD (Resistance Temperature Detector) | | **Element Material** | Platinum (Pt) | | **Nominal Resistance** | 100 $\Omega$ at 0°C (Pt100) or 1000 $\Omega$ (Pt1000) * | | **Wiring Configuration** | 2-wire or 3-wire (Standard B-Class) | | **Temperature Range** | -50°C to +250°C (Standard industrial range) | | **Tolerance Class** | Class B (±0.3°C at 0°C) | | **Protective Tube** | Stainless Steel (SUS304 or SUS316) | *\*Note: Specific resistance depends on the internal element used in the W2TS series variant.* --- ### 2. Part Number Breakdown (Functional Logic) While specific to the manufacturer's catalog (often specialized suppliers like *Hayashidenko* or *Yamari*), the code generally breaks down as follows: * **W2TS**: Series designation (Waterproof/Weatherproof Thin-film Sensor). * **2B2**: Indicates the physical dimensions of the probe (e.g., 2mm diameter) and the lead wire length. * **R2**: Refers to the resistance value or the "R-Ratio" (Resistance change over temperature). * **K**: Indicates the tolerance or terminal type (K-type often denotes a specific connector or "Klasse" for accuracy). --- ### 3. Key Electronic Components The device is composed of three primary electronic sections: #### A. The Sensing Element (The Heart) It utilizes a **Thin-film Platinum Resistor**. This is created by depositing a thin layer of platinum onto a ceramic substrate. As temperature increases, the electrical resistance of the platinum increases in a highly predictable, linear fashion. #### B. The Lead Wires To prevent electrical noise and corrosion, the wires are usually: * **Teflon (PTFE) Coated**: For chemical and moisture resistance. * **Silver-plated Copper**: To ensure minimal lead resistance interference. #### C. Insulation & Protection The internal element is packed with **Magnesium Oxide (MgO)** powder or high-temp epoxy to provide electrical insulation between the sensor element and the outer metal sheath, preventing short circuits while maintaining thermal conductivity. --- ### 4. Typical Applications 1. **Semiconductor Processing**: Monitoring temperatures in etching or deposition chambers. 2. **HVAC Systems**: High-precision air/liquid flow temperature measurement. 3. **Medical Equipment**: Sterilizers and laboratory incubators. ---