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Vishay High-Power UV LED Designed For Long Lifetimes

365nm InGaN LED is an energy-saving replacement for mercury lamps

Vishay Intertechnology has introduced a new device in its VLMU35xx series of ceramic-based, high-power UV LEDs with silicone lenses that features a wavelength in the 365nm range.

Designed to provide a reliable, energy-saving replacement for mercury lamps, the Vishay Semiconductors VLMU3510-365-130 delivers long lifetimes in a 3.45mm by 3.45mm surface-mount package for medical, industrial, and printing applications.

The silicone lens of the VLMU3510-365-130 enables lifetimes up to 25,000h, compared to the typical mercury lamp lifetime of 10,000h. The 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 technology, the device released today features 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. RoHS-compliant, halogen-free, and Vishay Green, the VLMU3510-365-130 is compatible with reflow soldering processes and features a Moisture Sensitivity Level of 3 in accordance with J-STD-020. 



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Thanks to the great diversity of the semiconductor industry, we are always chasing new markets and developing a range of exciting technologies.

2021 is no different. Over the last few months interest in deep-UV LEDs has rocketed, due to its capability to disinfect and sanitise areas and combat Covid-19. We shall consider a roadmap for this device, along with technologies for boosting its output.

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