Nichia launches 280nm UVC LED for water purification and air sterilization

Nichia Corp of Tokushima, Japan has launched the NCSU334A deep ultraviolet (UV) LED.

Following success over the years with UVA LEDs (specifically in conventional resin curing applications), Nichia’s new 280nm UVC NCSU334A will be able to address mass-market applications of solid-state lighting in water purification and air sterilization. With its small size (6.8mm x 6.8mm) and strong performance (55mW typical optical power at 350mA), the NCSU334A allows for system miniaturization and longer lifespan compared with previous technologies.

Conventional UVC LEDs (200-280nm) have the problems of more complex crystal growth and a shorter life than UVA LEDs (365-405nm). Nichia says that, through its unique crystal growth technology (cultivated for many years in UVA LEDs), it has developed high-radiant-flux, long-life UVC LED. The NCSU334A achieves a significant lifetime improvement versus conventional UV lamps. Additionally, it uses a newly developed hermetically sealed package, making it highly reliable as it is not as susceptible to external environmental conditions and can therefore be used in various harsh environments.

Nichia expects the LED to contribute to the complete replacement of mercury lamps. The firm aims to continue to improve the characteristics of its UVC LED portfolio.

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