## KGS13-R: Electronic Components and Specifications The **KGS13-R** is a specific model of an **optical sensor** (typically a photo-interrupter or transmissive sensor) often used in industrial automation, paper detection in printers/copiers, and position sensing. ### 1. Core Electronic Configuration The KGS13-R operates based on a pair of infrared components housed in a single U-shaped plastic casing. | Component | Type | Function | | :--- | :--- | :--- | | **Emitter** | Infrared LED | Converts electrical energy into infrared light. | | **Detector** | Phototransistor | Detects IR light and converts it back into an electrical signal. | | **Housing** | U-shaped Slot | Provides a physical gap for an object to block the light beam. | --- ### 2. Technical Specifications The following values are typical for the KGS13 series electronic parts: #### Absolute Maximum Ratings (at 25°C) * **Input (Emitter):** * Forward Current ($I_F$): **50mA** * Reverse Voltage ($V_R$): **5V** * **Output (Detector):** * Collector-Emitter Voltage ($V_{CEO}$): **30V** * Emitter-Collector Voltage ($V_{ECO}$): **5V** * Collector Current ($I_C$): **20mA** #### Electro-Optical Characteristics * **Forward Voltage ($V_F$):** ~1.2V (at $I_F$ = 20mA) * **Dark Current ($I_{CEO}$):** Max 100nA (when no light is present) * **Peak Sensitivity Wavelength:** ~940nm (Infrared) --- ### 3. Pinout and Circuit Integration The device typically has 4 pins. The standard circuit integration is as follows: ```mermaid graph LR A[Vcc] --> R1[Resistor] R1 --> B[Anode - Pin 1] C[Cathode - Pin 2] --> D[GND] E[Vcc] --> F[Collector - Pin 3] G[Emitter - Pin 4] --> H[Output Signal] H --> I[GND] ``` ### 4. Key Electronic Features * **High Sensitivity:** The phototransistor is tuned to the specific wavelength of the internal LED to prevent interference from ambient light. * **Response Time:** Fast switching speeds (usually in the microsecond range), making it suitable for high-speed counting or RPM sensing. * **Compact Form Factor:** The "R" suffix often denotes a specific lead shape or mounting orientation (e.g., Right-angle or specific PCB mounting style). ---