First Korean Supplier of Military-Grade Switches for F-35 and KF-21
Sungjin Techwin delivers cockpit switches, HOTAS assemblies, NVIS lighting panels, and surge protect
Proven Reliability Through Global Defense Programs
Our products are qualified under MIL-STD and DO-160 standards, ensuring durability in extreme condit
Innovation in Cockpit Control & Lighting Solutions
We specialize in advanced NVIS-compatible lighting, overhead panels, and ergonomic HOTAS systems des
SUNGJIN TECHWIN CO.,LTD.
See us at Seoul ADEX 2025
Sungjin Techwin, a switch and sensor specialist, has been recognized for its component development and is currently in the process of developing and mass producing the joystick for the Korea Air Force (KUH), the first developer of joystick components for the Korea Air Force (KAF).
Yuseong-gu, Daejeon, South Korea
Aerospace
Products & Services
Operating Control computer
SungJin Techwin Co.,Ltd.
Sungjin Techwin develops operating control computers designed for ground and naval defense applications. Engineered for harsh environments, these ruggedized systems provide secure and real-time processing to support RCWS operations, anti-drone defense, and unmanned surface vehicle control. Built to military standards, they offer high reliability under shock, vibration, and temperature extremes while enabling seamless integration with sensors, weapons, and communication networks. By combining durability with scalable architecture, Sungjin’s operating control computers ensure mission effectiveness across diverse modern battlefield domains.
Control Grip
SungJin Techwin Co.,Ltd.
Sungjin Techwin’s control grips are designed to provide pilots with intuitive and precise control in critical missions. Engineered with ergonomic layouts, high-reliability switches, and NVIS-compatible backlighting, our grips are fully customizable to meet diverse cockpit requirements. Qualified under MIL-STD and DO-160 standards, they ensure durability and safety in extreme operational environments. With proven applications across programs such as KF-21, KUH, LAH, and the Calidus B-250, our control grips demonstrate world-class performance and trusted reliability for next-generation aircraft.
Military switch
SungJin Techwin Co.,Ltd.
Sungjin Techwin’s military-grade switches are engineered for mission-critical performance in the most demanding aerospace and defense environments. Designed with superior durability, ergonomic precision, and NVIS compatibility, our switches are qualified to MIL-STD and DO-160 standards. They are deployed across leading global platforms such as F-35, KF-21, T-50, CH-47, and B-250. With proven reliability and over 20 years of production expertise, Sungjin Techwin continues to deliver innovative cockpit control solutions that meet the highest standards of safety and performance.
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About
Sungjin Techwin, a switch and sensor specialist, has been recognized for its component development and is currently in the process of developing and mass producing the joystick for the Korea Air Force (KUH), the first developer of joystick components for the Korea Air Force (KAF). By supplying joystick components (switches) for the F-35, the next-generation U.S. fighter jet that has been in mass production since 2010, the company has secured its position as the sole joystick component developer in Korea. Furthermore, the company has been selected as the joystick and panel developer for the Light Armed Helicopter (LAH), Light Civil Helicopter (LCH), and the Korea Fighter Jet (KFX), and is currently in development. Furthermore, the company has domestically produced the joysticks for the Biho armored vehicle and the Amphibious Armored Vehicle (KAAV), supplying them to all branches of the Army, Navy, and Air Force, earning recognition for its technological prowess.
In addition, we are also making a mark in the wireless communications field by supplying Bluetooth modules that are embedded in overseas automobiles including Hyundai, Kia Motors, and Toyota through Hyundai Mobis, and we have completed the development of a high-performance surge protector applicable to both civilian and military fields, and have been the first in Korea to standardize it in the defense field (Cheon-Gung). After applying it to various public institutions, we are working to expand our overseas export market.
All of our executives and employees are not satisfied with the present and are always doing their best to be recognized as “the best when made by Seongjin.” In the 21st century, only technological prowess can guarantee the future, so we promise to arm ourselves with cutting-edge technology based on a spirit of challenge and creative thinking and to continuously strive to achieve customer satisfaction.
In addition, we are also making a mark in the wireless communications field by supplying Bluetooth modules that are embedded in overseas automobiles including Hyundai, Kia Motors, and Toyota through Hyundai Mobis, and we have completed the development of a high-performance surge protector applicable to both civilian and military fields, and have been the first in Korea to standardize it in the defense field (Cheon-Gung). After applying it to various public institutions, we are working to expand our overseas export market.
All of our executives and employees are not satisfied with the present and are always doing their best to be recognized as “the best when made by Seongjin.” In the 21st century, only technological prowess can guarantee the future, so we promise to arm ourselves with cutting-edge technology based on a spirit of challenge and creative thinking and to continuously strive to achieve customer satisfaction.
