In recent years, high-intensity white LEDs (2.0 cd) have been increasingly adopted to improve visibility in a wide range of applications in the consumer electronics and automotive sectors. At the same time, the emergence of applications where multiple LEDs are mounted in a confined space—such as IoT devices and drones—requires high-density assembly. This makes achieving high brightness in a compact design challenging.
High brightness in an ultra-compact size that improves design flexibility.
The CSL1104WB series achieves a high luminous intensity of 2.0 cd in an ultra-compact 1608 size (1.6 mm x 0.8 mm = 1.28 mm²), which was previously difficult to achieve. The result is the same brightness as the current conventional 3528 PLCC package (3.5 mm x 2.8 mm = 9.8 mm²) but in an 87% smaller form factor.
Precise and Fine White Chromaticity
: Furthermore, color variation has been significantly improved, simplifying the color adjustment process by ensuring precise white chromaticity. This not only saves space in the application but also enhances design flexibility and visibility thanks to the high-density mounting of high-brightness LEDs, considerably reducing the development burden. Additionally, qualification according to the AEC-Q102 automotive reliability standard, specifically developed for optical devices, is planned, enabling trouble-free application inside industrial equipment and automotive applications exposed to harsh environments.
ROHM is committed to further expanding its range of 1608 size white LED chips, from low to high brightness, with the aim of improving design flexibility while simultaneously reducing the development burden (i.e., by decreasing the application height and simplifying product design).
