News: LEDs
3 September 2025
Silanna UV’s next-gen SF2 230nm far-UVC LED doubles radiant intensity
Silanna UV of Brisbane, Australia – which provides far-UVC light sources for water quality sensors, gas sensors, disinfection, and HPLC (high-performance liquid chromatography) applications – has released its SF2-3T9B5L1-TB next-generation far-UVC LED, which surpasses the SF1 series, with UVC wavelengths down to 230nm (typical 233nm), together with a doubling in output power and a 2x improvement in temperature stability. The new SF2 UVC LED is encapsulated in a standard compact transistor outline (TO-can) package.
The SF2 is designed for precise detection and reliable disinfection in demanding environments, with the collimated ball lens providing a 17° effective beam angle. It is suitable for the detection of nitrate (NO3) and nitrite (NO2) in water, and the detection of carbon dioxide (CO2) and nitric oxide (NO) in gas. Silanna UV claims that these features make it excellent for applications such as chemical and biological analysis, water quality monitoring, gas sensing, liquid chromatography, and disinfection.
The LEDs have an environmental advantage, as they contain no mercury, and the LEDs are far more robust than traditional UV lamps. The TO-can package format, with industry-standard TO-39 footprint, consists of a header and a cap that, together, form a hermetically sealed package. Electrostatic discharge (ESD) protection is integrated.
The SF2 LED improves far-UVC products by doubling typical radiant intensity to 2mw/Sr. But, at the same time, the new product’s improved temperature stability minimizes the impact when the temperature changes, keeping output power and wavelength stable to ensure quality detection readings. The new product thus sets a new benchmark in far-UVC LED technology, it is claimed.
Silanna UV launches 235nm Quad High-Power far-UVC LED at ICFUST
Silanna UV introduces TO-can package for SF1 235nm- and SN3 255nm-series UV-C LEDs
