The **APFA3010SURKZGSYKC** is a specialized surface-mount (SMD) electronic component manufactured by Kingbright. It belongs to the category of **Tri-color (RGB) LEDs**. ### 1. General Overview This part is a right-angle, surface-mount LED designed to emit three primary colors from a single package. Its unique "right-angle" orientation makes it ideal for edge-lighting or indicators where the light needs to be emitted parallel to the PCB. --- ### 2. Technical Specifications The part number describes a combination of three different LED chips (Hyper Red, Green, and Yellow) within one 3.0mm x 1.0mm housing. | Parameter | Hyper Red (SURK) | Green (ZGS) | Yellow (SYK) | | :--- | :--- | :--- | :--- | | **Material** | AlGaInP | InGaN | AlGaInP | | **Wavelength (Peak)** | 645 nm | 515 nm | 590 nm | | **Luminous Intensity** | ~120-250 mcd | ~300-600 mcd | ~80-150 mcd | | **Forward Voltage (Typ)** | 1.95 V | 3.3 V | 2.0 V | | **Viewing Angle** | 120° | 120° | 120° | --- ### 3. Key Electronic Characteristics * **Package Size:** 3.0mm x 1.0mm x 2.0mm (3010 Metric). * **Common Anode/Cathode:** This specific series typically features a **common anode** or independent pinout depending on the specific internal wiring, allowing for individual control of each color. * **Water Clear Lens:** The epoxy is transparent, ensuring maximum light output without diffusion. * **Moisture Sensitivity Level (MSL):** Level 3, requiring proper handling to prevent damage during reflow soldering. --- ### 4. Pin Configuration and Schematic While you should always consult the official datasheet for the footprint, the general internal structure for this 4-terminal device is as follows: ```text Pin 1: Cathode (Red) Pin 2: Common Anode Pin 3: Cathode (Green) Pin 4: Cathode (Yellow/Blue depending on variant) ``` --- ### 5. Common Applications * **Backlighting:** Providing light for LCD displays or membrane switches. * **Status Indicators:** Using color mixing to show different states (e.g., Green for OK, Yellow for Warning, Red for Error). * **Edge Lighting:** Due to its right-angle shape, it is perfect for illuminating light pipes or acrylic panels from the side.