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Optoelectronics/Displays??

White LEDs with InGaN/TAG suit automotive apps

Posted: 19 Dec 2008 ?? ?Print Version ?Bookmark and Share

Keywords:white LED? automotive application? backlight display?

VLMW84

Vishay Intertechnology Inc. has launched what it claims to be the first series of high-intensity white power SMD LEDs in the CLCC-2 flat ceramic package to offer InGaN/TAG on sapphire technology. Designed to reduce costs in high-volume applications, the VLMW84 devices offer low thermal resistance of 25K/W and high optical power from 5600- to 14000mcd.

With an ultralow profile of only 0.75mm, the CLCC-2 flat ceramic package of the VLMW84 allows the additional current drive for a maximum light output while maintaining a high service life of up to 50,000 hours, making them suitable light sources in space-limited applications where thermal management is a key consideration.

The new devices are optimized for display backlighting and illumination in automotive and transport, consumer, and general applications. An eco-friendly alternative to cold cathode fluorescent lamp display backlighting, the Vishay CLCC-2 LED offers excellent efficiencies in brightness, lifetime, and power savings in a compact package (3.3mm x 3.4mm). Typical end products include flashes for cameras; emergency lighting and signs; and automotive instrument panels and exterior lighting, such as brake lights and turn signals.

The LEDs offer a typical luminous flux of 27000mlm and optical efficiency of 40lm/W at 100mA. The devices feature a luminous intensity ratio per package unit of IV max/IV min 1.6, forward voltage up to 5V, and 60 half-intensity angle.

The VLMW84 LEDs are compatible with IR-reflow solder processes, in accordance with CECC 00802 and J-STD-020C. Preconditioned according to JEDEC Level 4 standards, the CLCC-2 flat package is Pb-free and RoHS-compliant. The devices are automotive qualified AEC-Q101 and offer an ESD-withstand voltage up to 1kV in accordance with JESD22-A114-B.

Samples and production quantities of the new VLMW84 white power SMD LEDs are available, with lead times of eight weeks for larger orders.





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