### Overview of LOM776-R The **LOM776-R** is a specific part number for a Surface Mount Technology (SMT) LED, typically manufactured by **OSRAM Opto Semiconductors** (now ams OSRAM). It belongs to the **TOPLED** family, which is widely used in automotive, industrial, and consumer electronics due to its reliability and standard footprint. --- ### Technical Specifications | Parameter | Specification | | :--- | :--- | | **Color** | Orange | | **Dominant Wavelength** | 606 nm | | **Luminous Intensity** | 11.2 mcd to 28.0 mcd (at 20mA) | | **Forward Voltage ($V_F$)** | Typ. 2.0 V (Max 2.6 V) | | **Forward Current ($I_F$)** | 20 mA (Standard operating current) | | **Package Type** | SMT (PLCC-2) | | **Viewing Angle** | 120° (Lambertian emitter) | | **Operating Temperature** | -40°C to +100°C | --- ### Key Features * **Technology:** Uses **InGaAIP** (Indium Gallium Aluminum Phosphide) chip technology, which provides high efficiency and brightness. * **SMT Package:** The PLCC-2 package is industry-standard, allowing for automated "pick and place" assembly and lead-free reflow soldering. * **Robustness:** Designed to withstand harsh environments, making it suitable for automotive interior lighting. * **Optical Indicator:** The 120-degree viewing angle makes it excellent for backlighting and status indicators where wide visibility is required. --- ### Common Applications 1. **Automotive:** Dashboard illumination, switch backlighting, and interior ambient lighting. 2. **Industrial:** Control panels, status displays for machinery, and signal lights. 3. **Consumer Electronics:** Icon backlighting and signal indicators on white goods (washers, dryers). 4. **Telecommunications:** Indicator lights on routers, modems, and servers. --- ### Pin Configuration & Dimensions The LOM776-R follows the standard **PLCC-2** layout: * **Anode:** Identified by a small notch or mark on the corner of the package. * **Cathode:** The opposite terminal. * **Footprint:** Approximately $3.2 \text{ mm} \times 2.8 \text{ mm} \times 2.1 \text{ mm}$.