COSEL — Power You Can Count On
In an electronics‑driven world, stable and reliable DC power is essential. From factory automation and semiconductor equipment to medical and telecommunications systems, COSEL delivers power solutions that critical applications can depend on.
Engineered AC‑DC and DC‑DC Power Solutions
Modern electronic components require clean, regulated DC power. COSEL’s AC‑DC power supplies and DC‑DC converters are designed to convert household and industrial AC input into precise, stable DC output, ensuring consistent performance and long‑term system reliability.
High‑Efficiency Switching Power Supplies
COSEL’s switching power supplies combine advanced semiconductor technology with optimized circuit design to provide:
- Compact, space‑efficient designs
- High efficiency with reduced heat generation
- Proven reliability in demanding environments
These strengths have made COSEL a trusted partner across medical, industrial automation, semiconductor, telecom, and test & measurement applications.
EMI Noise Filters for Demanding Environments
Since 2005, COSEL has developed EMI noise filters that protect sensitive electronics from conducted and radiated interference, supporting stable operation and regulatory compliance in real‑world environments.
Reliability Today. Innovation for Tomorrow.
With decades of experience and a global presence, COSEL continues to innovate—combining Japanese engineering quality with application‑focused design to deliver robust, efficient, and future‑ready power solutions.
COSEL ASIA LTD.

Cosel Asia Ltd.
Founded in 1998, Cosel Asia Ltd. is a wholly owned subsidiary of Cosel Co., Ltd., headquartered in Japan. As the regional sales and service arm, Cosel Asia is dedicated to driving growth and delivering exceptional customer support for Cosel's industry-leading switching power supply solutions across the Asia-Pacific and Middle East markets.
Operating through a robust network of trusted distributors, Cosel Asia currently serves customers in South Korea, Taiwan, Hong Kong, China, the Philippines, Thailand, Malaysia, Singapore, India, Australia, New Zealand, and Israel. With a strong commitment to innovation, reliability, and customer satisfaction, Cosel Asia continues to expand its footprint and strengthen its partnerships throughout the region.
| Registered Name | COSEL ASIA LTD. |
|---|---|
| Registered Address | Room 707, 7/F, Westin Centre, 26 Hung To Road, Kwun Tong, Kowloon, Hong Kong |
| AuthorizedCapital | USD200,000.00- |
| Share Holder | Cosel Co., Ltd. (100%) |
| CEO | Wong Yiu Fai, Calvin |
| Date of Establishment | March 18, 1998 |
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SEOUL OFFICE
- Add:
- A-806, Pyeongchon Acrotower, 1591 Gwanyang-dong, Dongan-gu, Anyang-si, Gyeonggi-do, Korea
- Zip:
- 14067
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BANGALORE OFFICE
- Add:
- Cabin No 5, Flat No 401 Eden Park, Golden Square Business Centre 20/14, Vittal Mallya Road, Bengaluru-560001 India
- Zip:
- 560001
COSEL ASIA LTD.


