The part number **47LAC-2D0YR-R/Q** refers to a high-precision, multi-turn **Wirewound Potentiometer** (specifically from the 47L series). These components are designed for industrial control systems where fine adjustment and high durability are required. --- ## 1. Technical Specifications Table | Feature | Description | | :--- | :--- | | **Component Type** | Precision Multi-turn Potentiometer | | **Element Type** | Wirewound (High stability, low noise) | | **Standard Turns** | 10 Turns (3600° rotation) | | **Resistance Tolerance** | ±5% (Standard) | | **Linearity** | ±0.25% to ±0.1% | | **Power Rating** | 2.0 Watts at 40°C | | **Mounting Style** | Panel Mount (Bush Mount) | | **Operating Temperature** | -55°C to +125°C | --- ## 2. Part Number Breakdown (Typical Nomenclature) While specific internal manufacturer codes can vary, the suffixing usually follows this logic: * **47L**: Represents the series (Precision Wirewound 10-turn). * **AC**: Refers to the mechanical configuration (usually shaft style and bushing type). * **2D0YR**: * **2D0**: Often represents the resistance value (e.g., 20k or 2k depending on decimal placement). * **Y/R**: Tolerance and linearity grades. * **-R/Q**: Often indicates compliance (RoHS) or specific packaging requirements (Bulk/Quality inspection). --- ## 3. Key Electronic Characteristics ### A. Resolution Because it is a **wirewound** potentiometer, the resolution is discrete rather than infinite. It depends on the number of wire turns on the mandrel. Higher resistance values generally offer better resolution. ### B. High Power Dissipation With a **2.0W rating**, it can handle higher current loads compared to standard carbon potentiometers, making it suitable for voltage dividers in power circuits. ### C. Mechanical Endurance These units are rated for high rotational life (often up to 1 million shaft revolutions), making them ideal for equipment that requires frequent recalibration. --- ## 4. Common Applications 1. **Industrial Automation:** Setting precise speed or tension parameters on motor drives. 2. **Medical Equipment:** Fine-tuning calibration for imaging or diagnostic tools. 3. **Test & Measurement:** Used as a variable reference in laboratory power supplies. 4. **Avionics:** Control interfaces requiring high reliability and resistance to temperature fluctuations.