The **QBLP655R-RIG** is a high-performance, surface-mount (SMD) Bi-Color LED manufactured by **QT-Brightek**. It belongs to the 1205 package family and is designed for applications requiring multi-color status indication in a compact footprint. --- ### 1. Key Technical Specifications The "RIG" suffix indicates the two colors integrated into the package: **Red** (R) and **True Green** (IG - InGaN Green). | Parameter | Red (R) | True Green (IG) | | :--- | :--- | :--- | | **Material** | AlGaInP | InGaN | | **Wavelength (typ)** | 624 nm | 525 nm | | **Luminous Intensity (typ)** | 100 mcd | 500 mcd | | **Forward Voltage ($V_F$)** | 2.0 V | 3.1 V | | **Viewing Angle** | 140° | 140° | | **Max Forward Current** | 30 mA | 30 mA | --- ### 2. Physical Characteristics * **Package Size:** 1205 (3.2 x 1.1 x 1.1 mm). * **Mounting Type:** Surface Mount (SMD). * **Lens Type:** Clear / Water Clear. * **Orientation:** Top-view. * **Form Factor:** Low profile, making it ideal for edge lighting or thin PCB designs. --- ### 3. Pin Configuration and Circuitry The QBLP655 series typically uses a **common cathode** or a dual-chip configuration. * **Internal Layout:** It contains two separate LED chips (Red and Green) within a single housing. * **Color Mixing:** By pulse-width modulating (PWM) the current to both pins simultaneously, you can achieve a third color (Amber/Yellow). --- ### 4. Typical Applications The combination of Red and Green is the industry standard for status signaling: 1. **Network Hardware:** Indicating Link/Activity (Green) vs. Error/Fault (Red). 2. **Battery Charging:** Charging (Red) vs. Fully Charged (Green). 3. **Industrial Controls:** Power On vs. Standby modes. 4. **Consumer Electronics:** Backlighting for buttons or small displays. --- ### 5. Soldering and Handling * **MSL Rating:** Moisture Sensitivity Level 3 (MSL 3). * **Reflow Soldering:** Compatible with Pb-free (Lead-free) reflow profiles. * **ESD Sensitivity:** The True Green chip (InGaN) is sensitive to static; proper ESD precautions (grounding straps) are required during assembly.