The **17TK-16-R** is a specific model of a **Compact Optical Rotary Encoder** manufactured by **Nemicon**. It is designed to convert the angular position or motion of a shaft into an analog or digital signal. --- ### ## Technical Specifications Below is a breakdown of the typical technical parameters for this specific series: | Parameter | Specification | | :--- | :--- | | **Encoder Type** | Incremental | | **Technology** | Optical | | **Resolution** | 16 Pulses Per Revolution (PPR) | | **Shaft Diameter** | 6mm (Standard for the 17TK series) | | **Output Phase** | Phase A and Phase B | | **Supply Voltage** | DC 5V (Typical) | | **Operating Temp** | -10°C to +70°C | --- ### ### Key Electronic Components & Features 1. **Light Source (LED):** The unit contains an internal infrared LED that projects light through a coded disk. 2. **Code Disk:** A small, rotating disk with 16 transparent and opaque slots. As the shaft turns, it "chops" the light beam to create pulses. 3. **Photo-Detector:** An IC or phototransistor that captures the light pulses and converts them into electronic signals. 4. **Output Circuit (Push-Pull or Open Collector):** The `-R` suffix often indicates a specific output type or RoHS compliance, typically providing clean square-wave signals for a PLC or microcontroller to read. --- ### ### Typical Pin Configuration Most 17TK series encoders utilize a 4 or 5-pin connection: | Pin | Function | Description | | :---: | :--- | :--- | | **1** | Vcc | Power supply input | | **2** | Phase A | Primary pulse output | | **3** | Phase B | Secondary pulse (90° offset to determine direction) | | **4** | GND | Ground | --- ### ### Applications Due to its small form factor and 16 PPR resolution, this part is commonly found in: * **Audio Equipment:** Digital volume knobs (infinite rotation). * **Medical Devices:** Precision adjustment interfaces. * **Small Robotics:** Monitoring slow-speed motor rotation. * **Industrial Panels:** Menu navigation and parameter setting.