The part number **47LPA-142B-R** typically refers to a specialized electronic component, most commonly identified as a **Rotary Encoder** or a **Potentiometer-style switch** manufactured by companies like CTS or similar electronic hardware specialists. Below is a detailed breakdown of the specifications and characteristics associated with this part. --- ## 1. Component Overview The 47LPA series generally belongs to the **Precision Potentiometer** or **Rotary Switch** category, designed for panel mounting where high reliability and specific tactile feedback are required. ### Technical Specifications (General) | Feature | Specification | | :--- | :--- | | **Component Type** | Rotary Potentiometer / Encoder | | **Resistance Value** | Varies by sub-model (often 10k-50k ohms) | | **Power Rating** | 0.05W to 0.25W | | **Rotational Life** | 10,000 to 100,000 cycles | | **Mounting Type** | Through-hole (PCB) or Panel Mount | | **Operating Temp** | -10°C to +70°C | --- ## 2. Part Number Breakdown While manufacturer coding can vary slightly, the nomenclature "47LPA-142B-R" typically follows this logic: * **47LPA**: The Series identifier (Low Profile, Side or Top adjust). * **142**: The electrical configuration (142 usually signifies a specific resistance taper or shaft length). * **B**: Often denotes a **Linear Taper** (where resistance changes at a constant rate relative to rotation). * **R**: Indicates compliance with **RoHS** (Restriction of Hazardous Substances) standards. --- ## 3. Key Applications These parts are used in interfaces where a user needs to adjust a parameter manually. 1. **Audio Equipment**: Volume controls, gain adjustments, or EQ tuning in mixers. 2. **Industrial Controls**: Speed settings for small motors or temperature set-points. 3. **Test & Measurement**: Calibration knobs on multimeters or oscilloscopes. 4. **Consumer Electronics**: Control knobs on household appliances (microwaves, dimmers). --- ## 4. Mounting & Physical Footprint The "LPA" designation often implies a **Low Profile** design. ```text Physical Layout: - Pins: Usually 3 main terminals (Input, Wiper, Output) - Housing: Metal or high-grade plastic for durability - Shaft: D-type or Knurled shaft for knob attachment ``` ---