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About Us

Circuit Protection Solutions Provider

About Us

Semiware Semiconductor (Shanghai) Co.,Ltd.

A high-tech enterprise primarily engaged in the research, development, manufacturing, and marketing of high-reliability circuit protection devices and discrete components. Our products are utilized in industries such as network communication, automotive electronics, industrial control, security, new energy, and consumer electronics. Additionally, we provide professional circuit protection design and EMC technical services to our customers.

Your Premier Circuit Protection Solutions Provider

Operational status


Standard Products


Standard Packages


R&D Center & EMC Lab


Protection Circuits



Core competitiveness

Research and Design

Lower Capacitance, Lower Clamping Voltage, Higher Surge Absorption, Enhanced Reliability

Manufacturing Technology

Primary Factory Source, Timely Delivery, High-Quality Stability

Application Technology

Our expertise in products, technology, and systems


Our EMC experts and global EMC laboratories offer professional EMC design and testing services to our customers.


2023 2022 2021 2020 2019 2018


May: Launched OVP series products for consumer electronics
September: The brand promotional video "Start" was released


March: Obtained the intellectual property management system certificate
August: Launched a full range of low-voltage Mosfets products
October: The overseas business department was established


February: GDT products obtained UL certification
February: MOV products obtained safety certification certificates such as UL, TUV, and CQC.
May: Anhui factory passed ISO9001 and IATF16949 system certification.


January: Wuhan branch was established, located in Huijin Center, Financial Harbor, East Lake High-tech Zone, Wuhan, Hubei
June: An industry-university-research cooperation base was established with Wuhan Institute of Technology to train students in EMC-related majors.
September: Anhui factory was put into production


January: Shanghai EMC Laboratory opened to the public, providing EMC design, EMC testing and other services.
May: Shanghai factory passed IATF16949 system certification
November: It was rated as a national high-tech enterprise


February: Xi'an R&D Center was established
May: Shenzhen branch moved to Xingdong, Baoan
August: Shenzhen EMC laboratory opened for business, providing EMC design, EMC testing and other services.

Qualifications and honors

Patent Qualifications Publication Certificates Quality Systems Authoritative Certifications
A detection device for diode processing Multi-chip miniaturized circuit protector Miniature circuit protector An adjustable fixing device for triode A testing device for diode production A drying device for diode production A transport device for diode production A vacuum plastic sealing machine for diode production A kind of molding equipment for diode production A copper frame receiving mechanism in diode production A positioning device for diode production A kind of welding equipment for diode production A glue coating device for diode production A packaging machine for transistor production A kind of packaging equipment for diode production A surface treatment device for diode processing
Microwave integrated diode parameter control system Infrared laser diode positioning management system Power semiconductor electrothermal design simulation system Diode power supply current sharing test and analysis system Circuit Semiconductor Intelligent Testing and Analysis System High power diode thermal resistance test system software Semiconductor Diode Cooling System Software Semiconductor power supply test analysis management system
ISO14001 Certificate (Chinese) ISO14001 Certificate (English) ISO9001 Certificate (Chinese) ISO9001 Certificate (English) IATF16949 Certificate (Chinese) IATF16949 Certificate (English) ISO14001 Certificate (English) IATF16949 Certificate (English)
CQC Certificate-MOV-14D CQC Certificate-MOV-07D CQC Certificate-MOV-10D UL Certificate-PTC UL Certificate-Gas Discharge Tube ISO14001 Certificate (English) IATF16949 Certificate (English)