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Optoelectronics/Displays??

High-brightness LEDs in tiny package offer 18 lumens

Posted: 18 Oct 2006 ?? ?Print Version ?Bookmark and Share

Keywords:American Bright? BL-PPW? Zener? high-brightness LEDs? LED?

American Bright Optoelectronics Corp. has introduced the BL-PPW series of high brightness surface mount LEDs designed to meet the changing needs of the backlighting and specialty luminaries industries. The device, measuring 5-by-5mm, incorporates the industry standard PLCC-6 package and is capable of producing up to 18 lumens of cool white light though a combination of three individually addressable LED die.

The new package takes advantage of the PLCC footprint, the company said, allowing for seamless integration into any standard production environment. The package is RoHS and WEEE compliant, making it suitable for products with global integration and use.

Other features of the BL-PPW series is the integration of three individual Zener diodes paired with each LED die to provide ESD protection up to 16000kV. This built-in protection assures the integrity of the LED die over a wide range of operation conditions, the company said. This compact design has a typical viewing angle of 1200, making the BL-PPW series suitable for wide area backlighting such as LCD TVs and visual marking applications such as stairway, egress and ingress paths, exit and other symbol luminaries.

The BL-PWW series has a maximum forward current rating of 25mA per LED die. Photometrical ratings are provided at both 20mA and 25mA per die, providing design engineers the necessary data to select the appropriate forward voltage and current combination to achieve the necessary output. Outputs of 15 lumens are achieved with a total forward current of 60mA at 3.4VF and a maximum output of 18 lumens is achieved at 75mA at 3.4VF.

"This LED is producing a stable output at brightness levels only dreamed about a year ago," said George Lee, president of American Bright Optoelectronics Corp. Steven Chen, the company's project manager, added, "We are seeing many applications that are benefiting from this design including highly efficient side-markers for truck trailers, safety lighting for steps and exit ways as well as traditional signal and symbol applications."

The BL-PPW series is available from stock and is priced from $1.45 each in production quantities. Samples are available to qualified OEM customers. The BL-PPW series is shipped 1,000 pieces per reel in antistatic bags.




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