The **SBR-90-R-R75-HN100** is a high-performance, specialized LED module manufactured by **Luminus Devices**. It belongs to the **SBR-90** series, which is characterized by its large monolithic chip area and high power density. Below is a detailed breakdown of its electronic specifications and characteristics. --- ### 1. Part Number Decoding Understanding the nomenclature helps identify the exact electronic properties: | Segment | Meaning | Specification | | :--- | :--- | :--- | | **SBR** | Product Family | Surface Mount (Big Chip) Round LED | | **90** | Chip Size | 9.0 $mm^2$ emitting area | | **R** | Color | Red (approx. 613-623 nm) | | **R75** | Binning Code | Standard flux/wavelength bin | | **HN100** | Package Style | High-thermal-conductivity metal-core PCB (Star Board) | --- ### 2. Key Electronic Specifications The SBR-90 is designed for high-current operation, requiring precise thermal management and constant current drivers. | Parameter | Typical Value | Max Rating | | :--- | :--- | :--- | | **Forward Current ($I_F$)** | 13.5 A | 22.5 A (Pulse) / 18 A (DC) | | **Forward Voltage ($V_F$)** | 2.2 V - 2.6 V | 3.5 V | | **Radiant Flux** | 3.5 - 4.5 Watts | - | | **Peak Wavelength** | 613 nm | 623 nm | | **Thermal Resistance ($R_{th-jc}$)** | 0.5 °C/W | Ultra-low for heat dissipation | --- ### 3. Core Electronic Components & Features #### A. Monolithic Emitter Unlike many LEDs that use an array of small dies, the SBR-90 uses a single **9 $mm^2$ monolithic chip**. This results in: * Uniform light distribution. * Simplified optical coupling (ideal for fiber optics or micro-projectors). #### B. Metal Core PCB (MCPCB) The "HN100" designation refers to the hexagonal star board. This is not just a carrier but an electronic component designed to: * **Dissipate Heat:** The low thermal resistance is critical because the device can pull over 30 Watts of power. * **Electrical Isolation:** The copper trace layer is electrically isolated from the aluminum/copper heat sink base. #### C. Driving Requirements Because of the very low forward voltage ($\approx$ 2.5V) and extremely high current ($\approx$ 13.5A), standard LED drivers will not work. * **Driver Type:** Constant Current (CC) Buck/Boost converter. * **Regulation:** Must have high-speed current regulation to prevent thermal runaway. --- ### 4. Application Areas Due to its high power and specific red wavelength, this part is used in: * **Medical Equipment:** High-intensity illumination for surgery or diagnostics. * **Industrial Projection:** High-lumen projectors and 3D printing (SLA). * **Machine Vision:** High-speed strobe lighting for factory automation. ---