## Overview of HLMP-CE12-R0ADD The **HLMP-CE12-R0ADD** is a high-brightness, precision optical performance LED manufactured by Broadcom (formerly Avago Technologies). It belongs to the T-1¾ (5mm) Cyan LED series, specifically designed for applications requiring high visibility and durability. --- ### 1. Key Technical Specifications The following table outlines the primary electrical and optical characteristics of the HLMP-CE12-R0ADD: | Parameter | Specification | Details | | :--- | :--- | :--- | | **Color** | Cyan | InGaN technology | | **Dominant Wavelength** | 505 nm | Typical value | | **Luminous Intensity** | 930 - 2500 mcd | Measured at 20mA | | **Viewing Angle** | 15° | Directed, narrow beam | | **Forward Voltage ($V_F$)** | 2.8V - 3.8V | Typical at 20mA | | **Forward Current ($I_F$)** | 30 mA | Maximum rating | | **Lens Type** | Clear, Non-diffused | Circular shape | | **Package Size** | T-1¾ (5mm) | Standard through-hole | --- ### 2. Physical & Material Composition * **Technology:** Uses **Indium Gallium Nitride (InGaN)** on Sapphire substrate. This material is essential for producing high-intensity blue, green, and cyan light. * **Package Construction:** * The LED is encapsulated in an untinted, non-diffused epoxy. * The leads are typically silver-plated copper alloy for optimal conductivity. * **Optical Design:** The 15° viewing angle is achieved through a precise lens shape, concentrating light into a narrow, intense beam. --- ### 3. Electrical Features and Protection 1. **High Light Output:** Optimized for outdoor applications where sunlight readability is necessary. 2. **ESD Sensitivity:** Like most InGaN devices, this LED is sensitive to Static Electricity. It usually requires **Class 1C (HBM)** handling precautions (up to 1000V). 3. **Thermal Management:** The device is rated for an operating temperature range of **-40°C to +85°C**, making it suitable for industrial environments. --- ### 4. Typical Applications * **Traffic Management:** Used in pedestrian signals and traffic icons. * **Commercial Signs:** High-visibility outdoor advertising and variable message signs. * **Industrial Instrumentation:** Status indicators that must be visible in high-ambient light conditions. * **Specialty Lighting:** Decorative or architectural lighting requiring a specific cyan hue.