Based on the part number provided, this component appears to be a specialized **LED (Light Emitting Diode)** manufactured by **Ledman Optoelectronic**. The **LSRF9UG3392-R2-PF** is typically a multi-color (RGB) through-hole LED component commonly used in outdoor display modules and signage. --- ## Technical Specifications Below is a breakdown of the typical electronic characteristics for this series: | Parameter | Description / Value | | :--- | :--- | | **Component Type** | Full-Color RGB LED | | **Package Type** | Radial Lead (Through-hole), Oval/Round shape | | **Configuration** | Common Anode or Common Cathode | | **Wavelength (Red)** | ~625nm | | **Wavelength (Green)** | ~525nm | | **Wavelength (Blue)** | ~470nm | | **Lead Finish** | PF (Pb-Free / Lead-Free) | --- ## Pin Configuration and Logic As an RGB LED, this part features four pins. Depending on the specific sub-type (Common Anode is standard for this series): 1. **Pin 1:** Red Cathode 2. **Pin 2:** Common Anode (Positive terminal) 3. **Pin 3:** Blue Cathode 4. **Pin 4:** Green Cathode ### Basic Connection Diagram ```cpp // Example of driving the LED using PWM on an Arduino int redPin = 9; int greenPin = 10; int bluePin = 11; void setup() { pinMode(redPin, OUTPUT); pinMode(greenPin, OUTPUT); pinMode(bluePin, OUTPUT); } void loop() { // Set to a Purple hue (Red + Blue) analogWrite(redPin, 255); analogWrite(greenPin, 0); analogWrite(bluePin, 255); } ``` --- ## Key Features * **High Luminous Intensity:** Designed for high visibility even in daylight conditions. * **Wide Viewing Angle:** Often uses an oval lens to provide a wider horizontal viewing angle, ideal for outdoor screens. * **Environmental Stability:** The "-PF" suffix indicates compliance with RoHS standards (Lead-Free), making it suitable for modern environmentally regulated manufacturing. * **UV Resistance:** Usually features an epoxy resin that is resistant to yellowing from sunlight exposure. --- ## Common Applications * **Outdoor Video Walls:** Large scale LED billboards. * **Variable Message Signs (VMS):** Traffic and highway information displays. * **Architectural Lighting:** Decorative building illumination. * **Industrial Indicators:** Multi-state status lights for heavy machinery.