New ultraviolet emitting diode

Louise Smyth

Vishay has introduced a new ceramic/quartz-based UVC (short wavelength ultraviolet) emitting diode for sterilisation, sanitation, and purification applications. Designed to replace mercury UVC lamps, the Vishay Semiconductors VLMU60CL-280-125 delivers an extremely long lifetime in a 6mm by 6mm by 1.6mm surface-mount package.

Comparable to devices in the PLCC2 package with emission angles of ± 60°, the device offers an emission angle of ± 62.5° and high radiant power to 3.8mW at 20mA without the need for an external lens. Built on AlGaN technology, it features forward current to 40mA, forward voltage down to 4.4V, and a wavelength range of 270nm to 290nm.

The emitter diode's specifications make it ideal for water and air purification, physical surface sterilisation, medical disinfection, and portable sanitisers. RoHS-compliant, halogen-free, it is compatible with reflow soldering processes and features a Moisture Sensitivity Level of 3 in accordance with J-STD-020.

Samples of the new UVC emitting diode are available now, with production quantities will be available in Q1 2018 with lead times of eight weeks.


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