New White Chip LEDs: High Luminous Intensity (2.0cd) in a Class-Leading Small 1608 Size (Metric)
Improved ultra-compact design for greater space savings in battery-driven IoT equipment and drones
Willich-Münchheide, Germany, April 22, 2021 – ROHM has developed ultra-compact high luminous intensity white chip LEDs, called CSL1104WB. The products are optimized for applications requiring high brightness white light emission, such as IoT devices, drones, and other battery equipped applications.
(Fig. 1)

In recent years, high luminous intensity (2.0cd) white LEDs are being increasingly adopted to improve visibility in a range of applications in the consumer electronics and automotive sectors. At the same time, the emergence of applications that mount multiple LEDs in a small space – such as IoT devices and drones – require high density mounting. This makes it difficult to achieve high brightness in a compact footprint.

High brightness in an ultra-compact size improves design flexibility
The CSL1104WB series achieves a high luminous intensity of 2.0cd in an ultra-compact 1608 size (1.6mm x 0.8mm = 1.28mm²), which was previously difficult to achieve. The result is the same luminosity as the current mainstream 3528 size PLCC package (3.5mm x 2.8mm = 9.8mm²) but in an 87% smaller form factor.

Fine-grained, accurate white color chromaticity
Moreover, color variation is significantly improved, simplifying the color adjustment process by ensuring accurate white color chromaticity. This not only contributes to greater application space savings, but also improves design flexibility along with visibility through high density mounting of high luminosity LEDs, reducing development load considerably. In addition, qualification under the automotive reliability standard AEC-Q102 specifically developed for optical devices is planned, enabling a smooth application inside industrial equipment and automotive applications that are exposed to harsh environments.

ROHM is committed to further expand its lineup of 1608 size white chip LEDs from low to high brightness – aiming to improve design flexibility while reducing development load (i.e. decreasing application height, simplifying product design).
(Fig. 2 +3)

Online Distributor Information
Target Product(s): Ultra-compact high luminosity white chip LED (CSL1104WB)
Sales Launch Date: April 2021
Online Distributors: Digi-Key, Mouser, and Farnell

PicoLED™ and ExceLED™ are trademarks or registered trademark of ROHM Co., Ltd.
About ROHM Semiconductor

ROHM Semiconductor is a global company of 3.326 billion US dollars per March 31st, 2020 with 22,191 employees. The company develops and manufactures a very large product range from SiC Diodes and MOSFETs, Analog ICs such as Gate Drivers and Power Management ICs to Power Transistors and Diodes to Passive Components. The production of our high performing products is taking place in state-of-the-art manufacturing plants in Japan, Korea, Malaysia, Thailand, the Philippines, and China. LAPIS Technology and LAPIS Semiconductor (former OKI Semiconductor), SiCrystal GmbH and Kionix are companies of the ROHM Semiconductor Group. ROHM Semiconductor Europe has its Head Office near Dusseldorf serving the EMEA region (Europe, Middle East and Africa). For further information, please contact www.rohm.com/eu
 
 
 
» ROHM Semiconductor
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» Press Release
Date: 22.04.2021 14:00
Number: White chip LED-CSL1104WB EN
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ROHM Semiconductor GmbH
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Justine Hörmann
Karl-Arnold-Str. 15
D-47877 Willich-Münchheide
Germany
Phone: +49 2154 921 0
justine.hoermann@de.rohmeurope.com
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