Long Life Type Mini-mold Chip LED
Featured Product from ROHM Semiconductor USA, LLC
ROHM's New High-Reliability 1608-Size White Chip LED
Contributes to the Long-Term Design Quality of Displays in Industrial and Consumer Applications
ROHM announces the availability of the SMLD12WBN1W, a White chip LED with 1608 (1.6x0.8mm) size that achieves class-leading reliability. This new package offers superior mountability and long operational life, which makes it ideal for use in display panels (e.g. temperature control displays) in industrial and compact consumer equipment.
In recent years, the need to improve both design quality and visibility of industrial equipment has increased the use of White LEDs for numerical displays and visual indicators in these applications. High-reliability LEDs are required to guarantee no degradation in luminosity even with continuous operation for over 10 years. However, achieving this has not been possible until now due to the use of epoxy or silicone resins for molding of typical White chip LEDs. These types of material could not provide enough reliability to prevent degradation in luminosity or provide enough package strength to facilitate mounting on circuit boards.
ROHM has been providing 1608-size chip LEDs in colors ranging from Red to Green, and now it is adding White to this product range to meet market demand. The adoption of a new material that combines the benefits of epoxy and silicone resins made it possible to achieve class-leading reliability of White chip LED in such a small package.
ROHM’s tests have demonstrated that the SMLD12WBN1W maintained 100% of its luminosity after operating for 1,000 hours (@25°C, IF=20mA). This represents an improvement of 20x in operational life when compared to other similar products available in the market. Additional tests showed that the package strength was improved 25 times with the new material when compared to products using silicone resin. This will contribute to significantly reducing the occurrence of failures during fabrication when mounting on circuit boards.
ROHM is committed to continue developing highly reliable LEDs and to strengthen its product lineup while focusing on increasing usability.
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ROHM designs and manufactures integrated circuits (ICs), semiconductors, and other electronic components. These components find a home in the dynamic and ever-growing wireless, computer, automotive, and consumer electronics markets. Some of the world's best equipment uses ROHM products.
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