The **KRTB-1C3-R** is a specific electronic component produced by **Kingbright**. It belongs to the category of surface-mount (SMD) Light Emitting Diodes (LEDs). --- ### 1. General Overview The KRTB-1C3-R is a **Full-Color (RGB) SMD LED**. It integrates three separate LED chips (Red, Green, and Blue) into a single compact package, allowing for the creation of any color in the visible spectrum through color mixing (Pulse Width Modulation). ### 2. Key Specifications | Parameter | Red | Green | Blue | | :--- | :--- | :--- | :--- | | **Material** | AlGaInP | InGaN | InGaN | | **Dominant Wavelength** | 621 nm | 525 nm | 470 nm | | **Luminous Intensity (typ.)** | 120 mcd | 280 mcd | 60 mcd | | **Forward Voltage (typ.)** | 2.0 V | 3.3 V | 3.3 V | | **Viewing Angle** | 120° | 120° | 120° | --- ### 3. Physical & Mechanical Features * **Package Dimensions:** Typically 1.6mm x 1.6mm (0606 package equivalent). * **Profile:** Ultra-thin/Low profile, making it ideal for compact consumer electronics. * **Lens Type:** Water Clear, ensuring maximum light output and precise color blending. * **Mounting:** Compatible with automated SMT (Surface Mount Technology) placement and infrared reflow soldering. ### 4. Pin Configuration The device typically features a **4-pin configuration** (Common Anode or Common Cathode, though Kingbright often utilizes a 4-pin layout where each cathode is independent or shares a common terminal depending on the specific sub-series wiring). ```text [ Pin 1 ] --- Red Cathode [ Pin 2 ] --- Common Anode (+) [ Pin 3 ] --- Blue Cathode [ Pin 4 ] --- Green Cathode ``` *(Note: Always verify with the specific manufacturer datasheet for the exact pin mapping of the R-suffix variant.)* --- ### 5. Common Applications Due to its small footprint and RGB capabilities, the KRTB-1C3-R is frequently used in: 1. **Backlighting:** For LCD screens, switches, and buttons. 2. **Indicators:** Status lights for smartphones, wearables, and IoT devices. 3. **Decorative Lighting:** Architectural accents or toy lighting. 4. **Gaming Peripherals:** RGB lighting for keyboards and mice.