## SSL-LX5099GIW-R: Electronic Specifications and Details The **SSL-LX5099GIW-R** is a specific Bi-Color Light Emitting Diode (LED) manufactured by **Lumex Opto/Components Inc.** It is a standard through-hole component frequently used for status indication where two different colors are required in a single lamp footprint. --- ### 1. Key Technical Specifications | Parameter | Specification | | :--- | :--- | | **Manufacturer** | Lumex Opto/Components Inc. | | **LED Type** | Bi-Color (Red / Green) | | **Package / Case** | T-5mm (T-1 3/4) | | **Lens Style** | Milky White Diffused | | **Number of Pins** | 3 Pins (Common Cathode) | | **Wavelength (Red)** | 635 nm (Peak) | | **Wavelength (Green)** | 565 nm (Peak) | | **Luminous Intensity (Red)** | 40 mcd @ 20mA | | **Luminous Intensity (Green)** | 30 mcd @ 20mA | | **Viewing Angle** | 60° | --- ### 2. Physical Characteristics The "5099" series refers to the standard 5mm (T-1 3/4) cylindrical housing. * **Diffused Lens:** The "Milky White" diffusion helps blend the colors and provides a wider viewing angle, preventing the "hot spot" effect of clear LEDs. * **Three-Lead Configuration:** This part is a **Common Cathode** design. * **Pin 1:** Anode for Color 1 (Red). * **Pin 2:** Common Cathode (Negative/Ground). * **Pin 3:** Anode for Color 2 (Green). --- ### 3. Absolute Maximum Ratings (@ 25°C) | Parameter | Red | Green | Units | | :--- | :--- | :--- | :--- | | **Forward Current ($I_f$)** | 30 | 25 | mA | | **Forward Voltage ($V_f$) (Typ)** | 2.0 | 2.2 | V | | **Reverse Voltage ($V_r$)** | 5 | 5 | V | | **Power Dissipation** | 105 | 105 | mW | | **Operating Temp** | -40 to +85 | -40 to +85 | °C | --- ### 4. Color Mixing Capabilities Because this is a three-terminal LED, you can drive both anodes simultaneously. By modulating the current to the Red and Green pins, you can achieve a third color: * **Red Only:** Logic High on Red Anode. * **Green Only:** Logic High on Green Anode. * **Amber/Yellow:** Logic High on **both** Red and Green Anodes. --- ### 5. Standard Application Circuit To use this with a 5V microcontroller (like an Arduino), you must use current-limiting resistors for each anode. ```text [VCC] --- [Resistor 150Ω] --- Pin 1 (Red Anode) [VCC] --- [Resistor 120Ω] --- Pin 3 (Green Anode) [GND] ----------------------- Pin 2 (Common Cathode) ```