Vishay's new high-power UV LED with silicone lens ceramic substrate for long life

MALVERN, PA — May 27, 2016 — Vishay Intertechnology, Inc. (NYSE: VSH) today announced the launch of a new VLMU35xx series of ceramic substrate high power UV LED devices, the VLMU3510-365-130. With a silicone lens, the wavelength is in the range of 365nm. Vishay Semiconductors VLMU3510-365-130 is a reliable, energy-saving, energy-saving alternative to traditional mercury lamps and has a very long life. It is available in a small 3.45mm x 3.45mm surface mount package for medical, industrial and printing applications.

The VLMU3510-365-130's silicone lens provides a device life of 25,000 hours, which is much longer than the typical life of a mercury lamp of 10,000 hours. UV LEDs are environmentally friendly, contain no heavy metals, are more reliable, and are resistant to shocks, even with frequent switching. Mercury lamps require complex drive circuits that take 2 to 15 minutes to warm up, while the VLMU3510-365-130 uses a simple low-voltage circuit and no warm-up time.

These devices, released today, are fabricated using InGaN (Indium Gallium Nitride) technology, with typical radiated powers of 690 mW and 945 mW at 500 mA and 700 mA and wavelengths between 362.5 nm and 370 nm. The VLMU3510-365-130 has an emission angle of 130° and a radiation intensity of 315 mW/sr at 700 mA.

LED performance specifications make it ideal for UV curing in nail, dental and poster printing, blood and counterfeit notes, and photocatalytic purification. The VLMU3510-365-130 is RoHS and Vishay green, halogen-free, reflow solderable, and moisture-sensitive to Class 3 of the J-STD-020 standard.

Samples of the new UV LEDs are available now and are in volume production with lead times of six to eight weeks.

Introduction to VISHAY

Vishay Intertechnology, Inc. is a Fortune 1000 company listed on the New York Stock Exchange (VSH), a global division of semiconductors (diodes, MOSFETs, and infrared optoelectronic devices) and passive electronic components (resistors, inductors, capacitors) One of the largest manufacturers. These components are used in virtually all types of electronic equipment and equipment in the industrial, computing, automotive, consumer, communications, defense, aerospace, power, and medical markets. Vishay has become a global industry leader with product innovation, a successful acquisition strategy, and a “one-stop shop” service.

A siren is a loud noise-making device. Civil defense sirens are mounted in fixed locations and used to warn of natural disasters or attacks. Sirens are used on emergency service vehicles such as ambulances, police cars, and fire trucks. There are two general types: pneumatic and electronic.

Many fire sirens (used for calling the volunteer fire fighters) serve double duty as tornado or civil defense sirens, alerting an entire community of impending danger. Most fire sirens are either mounted on the roof of a fire station or on a pole next to the fire station. Fire sirens can also be mounted on or near government buildings, on tall structures such as water towers, as well as in systems where several sirens are distributed around a town for better sound coverage. Most fire sirens are single tone and mechanically driven by electric motors with a rotor attached to the shaft. Some newer sirens are electronically driven speakers.

Fire sirens are often called "fire whistles", "fire alarms", or "fire horns". Although there is no standard signaling of fire sirens, some utilize codes to inform firefighters of the location of the fire. Civil defense sirens also used as fire sirens often can produce an alternating "hi-lo" signal (similar to emergency vehicles in many European countries) as the fire signal, or a slow wail (typically 3x) as to not confuse the public with the standard civil defense signals of alert (steady tone) and attack (fast wavering tone). Fire sirens are often tested once a day at noon and are also called "noon sirens" or "noon whistles".

The first emergency vehicles relied on a bell. Then in the 70s, they switched to a duotone airhorn. Then in the 80s, that was overtaken by an electronic wail.

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