## Technical Overview: HLMP-EL26-R6000 The **HLMP-EL26-R6000** is a high-intensity, precision optical performance AlInGaP (Aluminum Indium Gallium Phosphide) LED. Manufactured by Broadcom (formerly Avago Technologies), it is specifically designed for applications requiring high light output and reliability in outdoor environments. --- ### 1. Key Specifications The following table highlights the primary electronic and optical characteristics of the component: | Parameter | Value | Unit | | :--- | :--- | :--- | | **Color** | Amber (Orange) | - | | **Dominant Wavelength** | 590 nm | nm | | **Luminous Intensity (Min)** | 550 mcd | mcd | | **Luminous Intensity (Max)** | 1150 mcd | mcd | | **Forward Current ($I_f$)** | 20 | mA | | **Forward Voltage ($V_f$)** | 2.0 (Typ) / 2.4 (Max) | V | | **Viewing Angle** | 15° | Degrees | | **Lens Type** | Clear, Non-diffused | - | | **Package Size** | T-1 3/4 (5mm) | mm | --- ### 2. Physical and Material Construction * **Technology:** It utilizes **AlInGaP II** technology. This material is known for its high luminous efficiency and excellent stability over a wide range of temperatures and currents. * **Encapsulation:** The LED is housed in a clear, non-diffused 5mm package. The "R6000" suffix typically denotes the packaging style (often Bulk or Ammo pack depending on the specific series internal coding). * **Optical Design:** The 15° viewing angle is achieved through a precise lead-frame and lens design, which focuses the light into a narrow, high-intensity beam. --- ### 3. Application Areas Due to its high brightness and moisture resistance, this part is commonly used in: 1. **Variable Message Signs (VMS):** Highway and traffic information boards. 2. **Traffic Signals:** Stoplights and pedestrian crossing indicators. 3. **Commercial Outdoor Advertising:** Large-scale LED billboards. 4. **Industrial Equipment:** High-visibility status indicators. --- ### 4. Comparison with Standard LEDs Standard 5mm LEDs often suffer from "catastrophic failure" or significant dimming in outdoor heat. The HLMP-EL26 series is engineered to mitigate these risks: * **Temperature Tolerance:** Designed to operate in temperatures ranging from -40°C to +100°C. * **Radiation Pattern:** Very well-defined radiation pattern ensures uniform light distribution when used in arrays. --- ### 5. Circuit Implementation Example When driving this LED with a 5V supply, you must use a current-limiting resistor to prevent damage. ```python # Simple Calculation for Current Limiting Resistor (R) # Formula: R = (V_supply - V_forward) / I_forward v_supply = 5.0 # Volts v_forward = 2.0 # Volts (typical for HLMP-EL26) i_forward = 0.02 # Amps (20mA) resistance = (v_supply - v_forward) / i_forward print(f"Required Resistor: {resistance} Ohms") # Result: 150 Ohms ```