High-Brightness Tri-color Surface Mount LEDs for Indoor and Outdoor Color Signs

Avago's new ASMT-QTB2 series of high-brightness AllnGaP and InGaN tri-color LEDs, which are made from an enhanced silicone resin material, provide high reliability, long life and significantly less color degradation over time. Moreover, the ASMT-QTB2 series offers a super wide viewing angle of 120-degrees to improve visibility of large outdoor displays in bright sunlight. Typical applications for Avago's new high-brightness ASMT-QTB2 RGB LEDs include stadium scoreboards, billboards, marquee signs, and electronic variable messages signs.

In addition to the high brightness, long life and compact size, Avago's ASMT-QTB2 SMT LEDs provide two significant advantages in the production environment: They can be easily soldered using conventional surface mount techniques to minimize production costs, and the package is qualified to a Joint Electronic Device Engineering Council (JEDEC) moisture sensitive level (MSL) rating of 2a. For manufacturers, this rating means that these LEDs can be kept in the open air (30 degrees C, 60 percent relative humidity) for up to four weeks after being removed from its sealed package without the need to remove absorbed moisture.

The InGaN and AllnGaP technology incorporated in Avago's ASMT-QTB2 LED package offers low thermal resistance, which allows more efficient heat transfer from the package to the motherboard thereby maintaining long-term device reliability. Moreover, it is compatible with standard surface mount technology reflow soldering processes. With a robust MSL 2a moisture sensitivity rating, customers will have greater flexibility during assembly of their products.

Samples and production quantities are available now through Avago's direct sales channel and worldwide distribution partners.