Sigetronics, a semiconductor protection device specialist, announced on the 15th that it has successfully localized the production of ultra-low capacitance (0.25–0.45 pF) TVS (Transient Voltage Suppressor) diodes for high-speed interfaces and is currently establishing a production system with the goal of mass production and shipment in the first half of next year.

According to the company, the product is an essential ESD (Electrostatic Discharge) protection device used in high-speed data transmission equipment such as smartphones, laptops, and tablets. Until now, it has been a core semiconductor component with a very high dependence on overseas suppliers. Amid growing supply instability caused by production disruptions at global suppliers such as Nexperia and strengthened semiconductor regulations between China and Japan, this achievement is particularly meaningful as a step toward technological self-reliance.

The TVS products developed by Sigetronics feature:

Ultra-low capacitance of 0.25–0.45 pF

Ultra-compact 0603 package

Dynamic resistance of approximately 0.2 Ω

They also meet the international standard IEC 61000-4-2 Level 4 (±15–20 kV) requirements, enabling stable protection without signal distortion even in ultra-high-speed data and video interface lines.

Starting with this product, Sigetronics plans to continuously expand its portfolio from the mobile and IT markets to automotive electronics high-speed interfaces.

A company representative stated,

“This ultra-low capacitance TVS device is a meaningful achievement that demonstrates the feasibility of localization in the high-speed interface protection device sector. We plan to actively respond to global supply-chain risks by expanding applications not only to smartphones, laptops, and IoT devices, but also to automotive high-speed communication fields such as USB-C and MIPI (Mobile Industry Processor Interface).”

newsis, December 15, 2025