365nm UV LED targets medical, industrial, and printing applications

July 07, 2016 // By Julien Happich
Designed with silicone lenses and shining a wavelength in the 365nm range, the VLMU35xx series of ceramic-based, high-power UV LEDs from Vishay Intertechnology come in a 3.45x3.45mm SMT package.

The silicone lens of the VLMU3510-365-130 enables a lifetime up to 25,000 hours, compared to the typical 10,000 hours of mercury lamps. The UV LED is free of heavy metals and provides increased reliability with its shock resistance and immunity to degradation from frequent on/off switching. While mercury lamps require complex drive circuits and need two to 15 minutes to warm up, the VLMU3510-365-130 allows for the use of simple low-voltage circuitry and requires no warm-up period.

Built on InGaN (indium gallium nitride) technology, the device has a typical radiant power of 690mW at 500mA and 945mW at 700mA in a wavelength range between 362.5nm and 370nm. The VLMU3510-365-130 offers an emission angle of 130° and radiant intensity of 315mW/sr at 700mA. The LED's specifications make it suitable for UV curing in nail salon, dental, and poster printing applications; blood and counterfeit money detection; and photocatalytic purification.

The device is compatible with reflow soldering processes and features a Moisture Sensitivity Level of 3 in accordance with J-STD-020. Samples and production quantities of the new UV LED are available now, with lead times of six to eight weeks.

Visit Vishay Intertechnology at www.vishay.com