Disinfecting with ultraviolet light

Disinfecting with ultraviolet light

Würth Elektronik offers UV LEDs with emission wavelength of 275nm. This wavelength kills germs, by destroying the RNA structure of Viruses and Bacteria. Therefore, those type of LEDs are suitable for disinfection in areas where chemical components are not suitable to use. This can be devices for germicide cleaning of different surfaces, or also for air and water disinfection. Because of its compact size, lower driving voltage, short switching time and robustness, they are the preferred choice to the standard UV-C tubes. Würth Elektronik eiSos offers with the UV-C-LEDs one more technical solution for the growing needs of disinfection systems.

“Our LEDs are built to maximize the efficiency output. We can achieve this by better light extraction, due to highly transparent quartz glass. In addition, low thermal resistance ceramic substrate to reduce heating effects in the chip and increase lifetime. Finally, we use gold plating, for better soldering and contact surfaces” says Zhelio Andreev, Product Developer at Würth Elektronik eiSos. “The application areas have bright portfolio, from the medical hygiene, and water and air purification, up to food and surface sterilization. We are looking forward to help our customers in their projects, and offer our technical service and support.”

As a benefit for the developer, Würth Elektronik eiSos offers the Ray files for all UV-C products. With their help, optical simulations can be done easier, and shorten the development time for the application.

Further information is available in the Application Note ANO008. It describes the basics of UV-C disinfection and the application of UV-C LEDs. In addition, it gives useful tips for working with UV-C light.

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Mike is the founder and editor of Electronics-Lab.com, an electronics engineering community/news and project sharing platform. He studied Electronics and Physics and enjoys everything that has moving electrons and fun. His interests lying on solar cells, microcontrollers and switchmode power supplies. Feel free to reach him for feedback, random tips or just to say hello :-)

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