## Technical Overview: HLMP-EG26-R2000 The **HLMP-EG26-R2000** is a high-brightness, precision optical performance **Red LED** manufactured by Broadcom (formerly Avago Technologies). It is part of the T-1¾ (5mm) AllnGaP (Aluminum Indium Gallium Phosphide) family, specifically designed for outdoor applications requiring high intensity and sunlight viewability. --- ### 1. Key Specifications | Parameter | Specification | | :--- | :--- | | **Color** | Red (626 nm typical) | | **Luminous Intensity** | 1500 mcd to 3500 mcd | | **Viewing Angle** | 23° | | **Lens Shape** | T-1¾ (5mm) Round | | **Lens Appearance** | Untinted, Non-diffused (Clear) | | **Forward Current ($I_F$)** | 20 mA (Standard Operating) | | **Forward Voltage ($V_F$)** | 1.8V to 2.4V | | **Mounting Type** | Through Hole | --- ### 2. Core Technologies * **AllnGaP Technology:** The LED uses Aluminum Indium Gallium Phosphide material. This technology offers superior light output efficiency and reliability over a wide range of temperatures. * **Precision Optical Design:** The 23-degree viewing angle is achieved through a precisely molded lens, ensuring that the light is focused into a tight cone, which increases "on-axis" brightness. * **Standoffs:** The part typically includes "standoffs" on the leads to ensure consistent height and airflow when mounted on a PCB. --- ### 3. Electrical Characteristics & Considerations #### Power Consumption With a typical forward voltage of **2.1V** at **20mA**, the power dissipation per LED is approximately **42mW**. This makes it highly efficient for battery-powered signage. #### Circuit Integration To drive this LED safely from a DC source, a current-limiting resistor is required. Use the following formula: `R = (V_source - V_forward) / I_forward` **Example:** Using a 5V supply: `R = (5V - 2.1V) / 0.02A = 145 Ohms` (Standard 150Ω resistor recommended). --- ### 4. Common Applications Due to its high intensity and moisture resistance, this part is commonly found in: 1. **Traffic Signals:** Red stop lights and pedestrian crossings. 2. **Variable Message Signs (VMS):** Highway information boards. 3. **Commercial Outdoor Advertising:** Neon-replacement LED signs. 4. **Industrial Status Indicators:** Sunlight-readable machine status lights. ---