Quick answer: the top-ranked optocoupler manufacturers in China on this list are LITEON (Taiwan) and Hua Lian Dian Zi (Fujian). 2 Chinese manufacturers are ranked by registration, contact and product data; 10 companies are listed in total. Updated 21 Oct 2026.
Ranked optocoupler manufacturers
How this list is ranked- 01
LITEON LITEON
Registered as 光宝科技股份有限公司.
- Optocouplers
- Bridge rectifiers
- Power adapters
Why it ranks here: registered legal entity on file; email published; operating since 1975.
- 02
Hua Lian Dian Zi 华联电子
Registered as 厦门华联电子股份有限公司 in 1997.
- Optocouplers
- Numeric LED displays
- Photodiodes
Why it ranks here: registered legal entity on file; phone published; operating since 1984.
International optocoupler brands in China
Foreign-owned groups with Chinese manufacturing or sales companies. Listed separately so the ranking above covers Chinese manufacturers only.
- INT
Panasonic Industry 松下电器机电 Full profile
Relays / Electronic components / Electronic materials.
- Relays
- Electronic components
- Electronic materials
- Batteries
- Industrial automation equipment
Why it ranks here: registered legal entity on file; phone published.
- INT
Broadcom Broadcom博通
Registered as 安华高半导体科技(上海)有限公司 in 2005.
- Optocouplers
- Photodetectors
- Photonic chips
- Electronic filters
Why it ranks here: registered legal entity on file; phone published; operating since 1991.
- INT
Toshiba Toshiba东芝半导体存储
Registered as 东芝电子元件(上海)有限公司 in 2017.
- Optocouplers
- Zener diodes
- Transistors
- MOSFETs
Why it ranks here: registered legal entity on file; phone published.
More Optocouplers manufacturers and brands
| Brand | Registered company | Website | Email / phone |
|---|---|---|---|
| Ao Lun De奥伦德 | 深圳市奥伦德元器件有限公司 | orient-opto.com | 0755-29980661 |
| onsemionsemi安森美 | 安森美半导体公司 | onsemi.cn | 021-61238798 |
| EVERLIGHT亿光EVERLIGHT | 亿光电子(中国)有限公司 | everlight.com.cn | — |
| RENESASRENESAS瑞萨 | 瑞萨电子(中国)有限公司 | renesas.com | — |
| VISHAYVISHAY威世 | 威世(中国)投资有限公司 | vishay.com | — |
Frequently asked questions
How many optocouplers manufacturers and suppliers in China are listed here?
10 companies are listed for optocouplers (光耦). 2 Chinese manufacturers have full profiles and are ranked; 3 international brands with China operations are listed separately.
Where are China's optocouplers manufacturers located?
Among profiled companies: Shanghai (2), Taiwan (1), Fujian (1).
How is this list ranked?
By the completeness and verifiability of each company's data: a registered legal entity, an official website, published contact details, a product range and company history. The rank is not a quality rating, and no company pays for its position. See How we rank for the full method.
How do I contact these manufacturers?
Each listing shows the company's official website and, where published, its email and phone number. Of the 10 companies listed, 10 have an official website and 1 publish an email address.