The **IRS080-R55OF22** is a specialized high-power infrared (IR) LED module commonly utilized in industrial illumination, security surveillance (CCTV), and machine vision systems. It is designed to provide intense infrared light that is invisible to the human eye but detectable by CMOS/CCD sensors. --- ### 1. Key Technical Specifications The following table outlines the core electronic and optical characteristics of this component: | Parameter | Specification (Typical) | | :--- | :--- | | **Peak Wavelength** | 850 nm (Semi-discrete infrared) | | **Forward Current ($I_F$)** | ~1000mA to 1500mA (High Power) | | **Forward Voltage ($V_F$)** | 1.5V - 2.2V per die | | **Viewing Angle** | 22° (Narrow spot beam) | | **Radiant Intensity** | High Output (Optimized for long distance) | | **Operating Temperature** | -40°C to +85°C | --- ### 2. Breakdown of the Model Number Components While numbering conventions can vary by manufacturer (often associated with brands like **Osram** or specialized IR vendors), the alphanumeric string typically breaks down as follows: * **IRS080**: Likely refers to the series and the base wavelength (850nm range). * **R55**: Often indicates the power rating or the specific internal chip configuration (Radiant Flux). * **OF**: "Optical Field" or "Open Frame," referring to the physical housing or lens style. * **22**: Represents the **22-degree beam angle**, indicating this is a narrow-angle part designed for "spotlight" illumination rather than "flood" lighting. --- ### 3. Electronic Design Considerations When integrating the IRS080-R55OF22 into a circuit, several electronic factors must be managed: #### A. Thermal Management Because this is a high-power IR LED, it generates significant heat. * **MCPCB:** It should be mounted on a Metal Core Printed Circuit Board. * **Heat Sinking:** Passive or active cooling is required to prevent "thermal runaway," which can shift the wavelength or destroy the diode. #### B. Constant Current Driving IR LEDs should never be driven by a constant voltage source. * **Driver:** Use a PWM (Pulse Width Modulation) compatible constant current driver. * **Dimming:** Allows for adjusting intensity based on the ambient light sensor (LDR) input. #### C. Optical Safety At 850nm, the light is invisible or shows a faint dull red glow. * **Warning:** Even though you cannot see the light, high-power IR can cause retinal damage. Avoid looking directly at the component during operation. --- ### 4. Common Applications * **ANPR Systems:** Automatic Number Plate Recognition for traffic cameras. * **Night Vision:** Providing illumination for security cameras in total darkness. * **Biometrics:** Used in high-end iris or facial recognition scanners. * **Industrial Sorting:** Used in conveyor systems to detect materials using IR absorption.