## Overview of LC503UHR1-30P-A-00AGA The **LC503UHR1-30P-A-00AGA** is a high-brightness Light Emitting Diode (LED) manufactured by **Cree LED** (formerly Cree Inc.). This specific part belongs to the Screen Master® series, designed primarily for outdoor video screens and decorative lighting applications. --- ### Technical Specifications | Parameter | Value / Description | | :--- | :--- | | **LED Type** | Through-Hole (Circular) | | **Size** | 5mm (T-1 3/4) | | **Color** | Red (Ultra High Red) | | **Wavelength** | 624 nm (Typical) | | **Luminous Intensity** | 3000 - 8200 mcd (Typical: 5500 mcd) | | **Viewing Angle** | 30 Degrees | | **Forward Current** | 50 mA (Maximum) | | **Forward Voltage** | 2.1V - 2.6V | | **Lens Appearance** | Water Clear | --- ### Key Electronic Components & Construction 1. **Semiconductor Die (AlGaInP):** The heart of the LED is an Aluminum Gallium Indium Phosphide (AlGaInP) chip. This material is chosen for red LEDs because it offers high efficiency and stability under varying temperatures. 2. **Epoxy Resin Lens:** The part is encapsulated in a UV-resistant clear epoxy. The "30P" in the part number indicates a **30-degree viewing angle**, which is achieved by the specific curvature of this lens, focusing the light into a narrower, more intense beam. 3. **Lead Frame:** The device features two silver-plated copper leads. * **Anode (+):** The longer lead. * **Cathode (-):** The shorter lead, usually accompanied by a flat edge on the base of the epoxy rim. --- ### Key Features and Use Cases * **High Luminous Intensity:** Because it can reach up to 8200 mcd, it is visible even in direct sunlight. * **Outdoor Durability:** Built with optical-grade epoxy that contains UV inhibitors to prevent yellowing or degradation from sun exposure. * **Applications:** * Full-color outdoor video signs. * Variable Message Signs (VMS) for traffic. * Commercial advertising displays. * Amusement park lighting. --- ### Absolute Maximum Ratings ($T_a = 25^\circ C$) | Item | Symbol | Maximum Rating | Unit | | :--- | :--- | :--- | :--- | | Forward Current | $I_F$ | 50 | mA | | Peak Forward Current | $I_{FP}$ | 200 | mA | | Reverse Voltage | $V_R$ | 5 | V | | Power Dissipation | $P_D$ | 130 | mW | | Operating Temp | $T_{opr}$ | -40 ~ +95 | $^\circ C$ | ---