The part number **FRTD-R-GWA-L/Q** (specifically associated with the **FRTD** series) refers to a specialized **Thin Film Resistance Temperature Detector (RTD)**. These components are primarily used in high-precision temperature sensing applications within the automotive, industrial, and medical sectors. Below is a detailed breakdown of the electronic components and specifications associated with this part. --- ### 1. Component Overview The device is a passive sensor that changes its electrical resistance based on temperature fluctuations. It is built using thin-film technology, where a microscopic layer of platinum is deposited onto a ceramic substrate. | Feature | Specification Details | | :--- | :--- | | **Sensor Type** | Pt100 or Pt1000 (Platinum RTD) | | **Technology** | Thin-film deposition on Ceramic | | **Lead Wire Material** | Silver-palladium or Nickel/Gold plated | | **Response Time** | High speed (due to low thermal mass) | | **Standard** | DIN EN 60751 | --- ### 2. Part Number Breakdown (Nomenclature) While specific manufacturer codes vary slightly, the standard breakdown for this series is as follows: * **FRTD**: Flexible/Flat Resistance Temperature Detector. * **R**: Denotes "Roll" or "Radial" lead configuration (depending on the specific mounting style). * **GWA**: Represents the physical dimensions and the glass-coating type used for environmental protection. * **L/Q**: * **L**: High-temperature stability rating. * **Q**: Quality assurance level (often Automotive Grade / AEC-Q200 compliant). --- ### 3. Key Technical Characteristics #### A. Temperature Coefficient (Alpha) The sensor typically follows the standard platinum curve: `α = 0.003851 Ω/Ω/°C`. This means for every degree Celsius change, the resistance changes by a predictable, linear amount. #### B. Tolerance Classes These parts are usually categorized by their accuracy at 0°C: 1. **Class F 0.3 (B):** ±0.30°C 2. **Class F 0.15 (A):** ±0.15°C 3. **Class F 0.1 (1/3B):** ±0.10°C #### C. Environmental Durability * **Insulation Resistance:** Typically >100 MΩ at room temperature. * **Self-Heating:** Extremely low (e.g., 0.2 K/mW at 0°C) to ensure the sensor does not heat itself and skew readings. --- ### 4. Typical Applications Due to the **L/Q** designation (signifying high reliability), these parts are found in: * **Automotive:** Exhaust gas recirculation (EGR) and oil temperature monitoring. * **Industrial:** HVAC systems and process control instrumentation. * **Medical:** Precise thermal regulation in laboratory equipment. ---