The **CLM2D-RCC-ACC** is a specific surface-mount (SMD) Light Emitting Diode (LED) manufactured by **Cree LED** (now part of SGH). It belongs to the **CLM2D** series, which is categorized as a high-reliability, 1-in-1 PLCC4 (Plastic Leaded Chip Carrier) Red and Cyan (or Cool White) LED family designed specifically for signage and illumination. --- ### 1. Key Technical Specifications The part number `CLM2D-RCC-ACC` can be broken down into specific technical parameters: | Parameter | Specification | | :--- | :--- | | **Package Type** | PLCC4 (Surface Mount) | | **Color** | Red & Cyan (Bi-color) | | **Dominant Wavelength** | Red: 619 - 624 nm | | **Luminous Intensity** | Red: 560 - 1400 mcd | | **Viewing Angle** | 120 Degrees | | **Forward Current ($I_F$)** | 20 mA (Standard) | | **Operating Temperature** | -40°C to +100°C | --- ### 2. Physical Construction and Features The "RCC" designation typically refers to the color combination and intensity binning. * **PLCC4 Housing:** Unlike standard 2-pin LEDs, the PLCC4 package has four leads. This allows for independent control of the internal chips, which is essential for multi-color or high-reliability applications. * **Encapsulation:** It usually features a clear or diffused epoxy resin, depending on the specific sub-variant, optimized for light extraction. * **Lead Frame:** The leads are silver-plated to ensure high conductivity and excellent soldering performance during the SMT (Surface Mount Technology) process. --- ### 3. Electronic Characteristics To integrate this part into a circuit, the following electronic properties must be considered: #### Forward Voltage ($V_F$) * **Red Chip:** Typically ~2.0V to 2.4V. * **Cyan/Cool White Chip:** Typically ~3.0V to 3.6V. #### Pin Configuration Because it is a PLCC4 package, the pinout is generally arranged as follows: ```text Pin 1: Cathode (Color 1) Pin 2: Anode (Color 1) Pin 3: Anode (Color 2) Pin 4: Cathode (Color 2) ``` *(Note: Always verify with the specific datasheet diagram for polarity orientation marks.)* --- ### 4. Common Applications Due to its reliability and wide viewing angle, the CLM2D-RCC-ACC is frequently used in: 1. **Full-Color Signage:** Used as a pixel element in outdoor or indoor displays. 2. **Amusement/Gaming:** Decorative lighting in arcade machines or slot terminals. 3. **Indicators:** Status indicators for industrial machinery where dual-color signaling is required. 4. **Backlighting:** Uniform illumination for buttons and switches. ---