ROHM has developed a 1608 size (1.6mm × 0.8mm) optimized for micro-light-emitting applications for the indicator and digital display applications of FA equipment*2 including control devices such as PLC*1, modems, and routers, etc. ) LED "CSL1901 series".Taking advantage of its own component technology, ROHM has optimized the low-current-driven micro-light-emitting application by customizing the light-emitting layer of the LED, and developed a 1608-size LED product with high versatility.
In recent years, with the technological development of LED products, the luminous efficiency has been greatly improved, and the luminous intensity of LEDs has also been continuously improved. With the increase of luminous intensity, in some applications that must consider the interference of adjacent light-emitting units, corresponding adjustments need to be made during design, so that the luminous intensity*3 and luminous wavelength*4 are more suitable for these applications. On the other hand, the market is also increasingly demanding LED products that meet the required characteristics of low current.
The new product takes advantage of ROHM's own component technology to achieve excellent product characteristics when emitting light at 2mA, and reduce visual differences such as brightness and chromaticity during micro-luminescence. When an ordinary 20mA LED emits light at a low current, there will be brightness fluctuations and chromaticity changes between products. Compared with ordinary products (when emitting light at 2mA), the brightness fluctuation of the new product is reduced by about half, and the chromaticity change is reduced by about 3nm. Visibility. In addition, the product also adopts a highly versatile 1608 size package and covers five luminous colors, which can be easily replaced by customers according to application needs or model change requirements.
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