## Overview of CSL0901VT The **CSL0901VT** is a high-performance, surface-mount (SMD) Light Emitting Diode (LED) manufactured by **ROHM Semiconductor**. It belongs to the Picoled™-RGB series, known for its ultra-compact size and high-intensity output, making it ideal for compact electronic displays and indicator panels. --- ### Technical Specifications The following table outlines the primary electrical and optical characteristics of the CSL0901VT: | Parameter | Specification (Red) | Specification (Green) | Specification (Blue) | | :--- | :--- | :--- | :--- | | **Luminous Intensity** | 70 mcd | 180 mcd | 45 mcd | | **Forward Voltage (Vf)** | 2.0 V | 3.0 V | 3.0 V | | **Wavelength (λd)** | 624 nm | 527 nm | 470 nm | | **Power Dissipation** | 52 mW | 63 mW | 63 mW | | **Operating Temp.** | -40°C to +85°C | -40°C to +85°C | -40°C to +85°C | --- ### Key Features * **RGB Tri-Color Integration:** Combines Red, Green, and Blue chips within a single package, allowing for full-spectrum color mixing. * **Ultra-Small Form Factor:** Designed with a 1513 (metric) / 0605 (inch) footprint, saving significant PCB real estate. * **High Reliability:** Built using advanced semiconductor materials (AlGaInP for Red, InGaN for Green/Blue) to ensure long-term stability and brightness. * **Surface Mount Technology (SMT):** Compatible with high-speed automated pick-and-place assembly processes. --- ### Pin Configuration and Internal Circuit The device typically features a 4-terminal or 6-terminal layout depending on the specific sub-variant, but generally follows a **Common Anode** or independent element structure. ```mermaid graph LR A[Common Anode] --- R[Red Cathode] A --- G[Green Cathode] A --- B[Blue Cathode] ``` ### Common Applications 1. **Consumer Electronics:** Indicator lights for smartphones, wearables, and tablets. 2. **Backlighting:** Small-scale LCD backlighting or button illumination. 3. **Status Indicators:** Multi-color status signaling for IoT devices and battery chargers. 4. **Gaming Peripherals:** Decorative lighting for keyboards or mice where space is limited. ---