Palatine, Ill. Lumex has launched its KoolBrite family of ceramic-substrate surface-mount LEDs. The devices are designed to meet high thermal dissipating requirements in a variety of applications.
Available in single- and dual-chip versions, the KoolBrite LEDs use the company's specially-formulated ceramic substrate material, a unique epoxy lens, and a manufacturing process that can cast the lens directly onto the ceramic substrate. The result is a family of surface-mount LEDs capable of withstanding wave soldering, while providing a useable operating life of 50,000+ hours with no loss in light output levels. KoolBrite LEDs are said to virtually eliminate failures due to thermal junction deterioration.
The documented heat characteristics of these LEDs include the ability to withstand the 280°C to 320°C temperature of a 20W soldering iron for 5 seconds, and a solder dip of 240° to 260°C for 10 seconds.
The single-chip devices deliver emitted colors including amber, green, red, yellow, and blue. Intensities range from 30 to 70 mcd at If = 20 mA. The dual-chip family includes devices with bi-color output. Product choices include red/green, red/yellow, and yellow/green with intensities ranging from 4 to 12 mcd at If = 20 mA. Both single- and dual-chip versions offer very wide viewing angles of 180 degrees.
Applications include illumination or indication on PC boards, annunciator and control panels, telecommunications switches, central office equipment, medical equipment, or anywhere a surface-mount LED with exceptional heat characteristics is needed.
The KoolBrite LEDs are available on 8-mm tape-and-reel. The devices are lead free. Application-specific LEDs can be ordered with options including a choice of colors and lens finishes, or IR emitters and sensors.
Pricing: Approximately $0.25 each in quantities of 3,000, depending on model and quantities.
Availability: Samples of standard-version devices are available from stock, with production quantities in eight to ten weeks.
Product information: KoolBrite LEDs
Lumex, 1-800-278-5666, www.lumex.com