SungJin Techwin

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Providing value to customers and partners based on creativity,
we seek to achieve customer satisfaction by pursuing our differentiated, core competencies.

Total Solution

Based on the development technology of switches and sensor components, we developed dozens of
military switches and sensors used for steering devices and entered the aerospace and military markets.
We provide high-performance and high-quality system document protection technology in the field of surge protection technology.
We standardized products based on surge patterns of international standards.

  • Requirement Institution / Decision

    Stage to determine the need through demand analysis and verification

  • Development

    Stage to develop the confirmed items and put research technology into practical use

  • Test evaluation

    Stage to ensure quality by conducting performance and environmental testing on prototypes

  • Standard establishment

    Stage to develop technical data such as specifications, drawings, quality assurance requirements, and SW technical documents necessary for effective procurement

  • Production

    Stage where successful items are produced according to the required procedure.

R&D staff accounts for more than 40% of the total workforce.

We have researchers with the best technology, and we are doing our best to develop products such as aviation, land equipment, weapon system, wireless communication, surge protectors, etc.


Through optimized quality control systems of ISO9001 (Quality Management System), ISO14001 (Environmental Management System),
and AS9100 (AeroSpace Quality System), we are achieving the best quality.

Quality policy

Zero defects
Zero customer complaints

Environmental policy

Resource protection
Green Management Pollution Prevention
Saving energy

Quality objectives

Quality Quality satisfaction

Cost Increase productivity and reduce costs

Delivery Compliance with delivery time


    62, Yuseong-daero 877beon-gil, Yuseong-gu, Daejeon, Republic of Korea

  • TEL.

    +82. 42. 271. 1177

  • FAX.

    +82. 42. 271. 0909

  • MAIL.

  • Company Registration Number.

    305. 81. 48572

Copyright ⓒ 2018 Sungjin Techwin Co., Ltd. all righis reserved.