### HLMP-AD16-RUTXX: Electronic Specifications and Overview The **HLMP-AD16-RUTXX** is a high-brightness Oval Precision Optical Performance LED, typically manufactured by Broadcom (formerly Avago). These LEDs are specifically engineered for outdoor electronic signs and signals. --- ### 1. Key Technical Specifications Below is a summary of the core electronic and optical characteristics of the HLMP-AD16 series: | Parameter | Value/Description | | :--- | :--- | | **LED Type** | Through-Hole (T-1 ¾) | | **Color** | Red (AlInGaP) | | **Dominant Wavelength** | 626 nm | | **Viewing Angle** | 30° x 70° (Oval) | | **Luminous Intensity** | Variable by bin (typically 1150 - 2400 mcd) | | **Forward Voltage ($V_F$)** | 1.8V to 2.4V (Typical: 2.1V) | | **Forward Current ($I_F$)** | 20 mA (Recommended) | | **Maximum Peak Current** | 100 mA | --- ### 2. Major Electronic Features * **Oval Spatial Radiation Pattern:** The part is designed with a specific lens geometry that provides a wide horizontal viewing angle (70°) and a narrower vertical viewing angle (30°). This is ideal for outdoor displays where viewers are spread out horizontally. * **AlInGaP Technology:** The chip uses Aluminum Indium Gallium Phosphide technology, which ensures high light output efficiency and stable performance over a wide temperature range. * **Epoxy Material:** The LED is encapsulated in an optical grade epoxy containing UV-A and UV-B inhibitors to reduce long-term degradation from sunlight exposure. --- ### 3. Application Circuit Design When integrating this part into a circuit, a current-limiting resistor is required. To calculate the resistor value ($R$) for a standard 5V supply: ```text Formula: R = (V_supply - V_forward) / I_forward Example: V_supply = 5V V_forward = 2.1V I_forward = 0.02A (20mA) R = (5 - 2.1) / 0.02 = 145 Ohms (Use 150 Ohm standard resistor) ``` --- ### 4. Part Number Breakdown (Suffixes) The suffix **"RUTXX"** refers to the specific binning and packaging: 1. **R & U:** Represent the specific intensity bins (Minimum and Maximum brightness levels). 2. **T:** Represents the color/wavelength bin. 3. **XX:** Typically refers to the packaging method (e.g., bulk vs. ammo pack/tape).