Shanghai Changyuan Wayon Circuit Protection Co., Ltd.
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Shanghai Changyuan Electronic Material Co., Ltd.
🇨🇳 China
2000101-200 peopleManufacturer/Trading CompanyEstablished brand
OEM manufacturer
Own brand
High-tech enterprise
Shipments
3860
Key customer
APTIV
Key market
🇮🇳 India
Description
Shanghai Changyuan Electronic Material Co., Ltd. (CYG) is a prominent high-tech manufacturer and trading company specializing in heat-shrinkable products and electronic materials. Established in 1986 and headquartered in Shanghai, the company is a subsidiary of the publicly traded Changyuan New Material Group (Stock Code: 600525). Operating from a 13,000 sqm facility with six sub-factories, the company maintains an annual production capacity exceeding 100 million meters and generates annual revenues between US$50 million and US$100 million. CYG is a leading provider of insulation and protection solutions, offering an extensive product range that includes thin-wall, dual-wall, and high-temperature resistant heat-shrinkable tubing, as well as PVC, PTFE, and Teflon sleeves. Their portfolio extends to specialized automotive components such as shrink tubes for brake systems, wire harness protection tubes, and expandable braided nylon sleeving. As a certified OEM and contract manufacturer, the company serves high-profile global partners including Sony and Samsung, and is recognized as a Sony Green Partner. Quality and environmental compliance are central to their operations, with certifications including IATF 16949, ISO 9001, ISO 14001, UL, CSA, and RoHS. The company also operates advanced electronic accelerators for contracted radiation manufacturing services. With a strong R&D focus supported by academic partnerships, CYG exports approximately 30% of its output to international markets across North America, Europe, Southeast Asia, and Australia, supporting critical applications in the automotive, aerospace, telecommunications, and defense industries.
Dual Wall Tube (135F) for Harness
Shrink Tube for Auto Brake System
Single Wall Shrink Tube for Auto Harness
TPU Tube for Auto Harness/Pipe System
Single Wall Shrink Tube for Auto Harness
Cyg-Amt Liner
Dual Wall Tube (RX) for Auto Harness
Shanghai Sunon Telecommunication Co., Ltd.
🇨🇳 China
1997101-200 peopleManufacturerEstablished brand
OEM manufacturer
Product customization
Patented technology
Description
Shanghai Sunon Telecommunication Co., Ltd., founded in 1997, is a leading manufacturer of circuit protection devices based in Shanghai, China. With a workforce of 101 to 200 employees, the company specializes in the development, manufacturing, and sale of Polymer PTC thermistors (PPTC resettable fuses). Sunon is recognized as one of the few companies globally possessing core PPTC technology and is the first and largest domestic manufacturer of PPTC devices in China, pioneering their use as variable resistors in circuit protection. The company operates a factory and holds an ISO 9001 certification, along with TUV/UL product approvals. Their product portfolio includes various series of PPTC resettable fuses and thermistors, serving a broad range of markets including telecommunication, automotive, battery, IT, computer, electronic, and automatic equipment.
Resettable Fuses (SF600-150)
Resettable Fuses (SF250-100 To SF250-160)
Resettable Fuses That Can Withstand Interrupt Voltage of 600V (SF600-160)
Resettable Fuses (SF250-120 (u))
Resettable Fuses (SD250-100 To SD250-160)
Thermistors (PPTCR) in Miniature Size (SN250-100 To SN250-160)
Resettable Fuses (SF250-180U)
Thermistors (PPTCR) That Can Withstand Interrupt Voltage of 250V (SN250-080 To SN250-180)
