High-speed signal lines are the backbone of data transmission in electronic equipment, serving as the critical support for device performance, functionality, and reliability. As consumers demand ever-increasing data rates and stability, surge protection standards for high-speed interfaces must rise commensurately.

Hazards of Surges to High-Speed Signal Lines

Signal Transmission Interference: High-speed lines require an impeccably clean data path. A transient surge can easily scramble data bits, introduce packet errors, or force a link to drop and re-train, leading to device communication failure.
Hardware Damage: Instantaneous high voltage and current travel along the trace, resulting in the burning of I/Os, melting of bond wires, or vaporization of solder joints, causing permanent line failure.
The threat extends far beyond mere signal instability, ranging from immediate catastrophic failure to long-term performance degradation, thereby endangering overall reliability, safety, and service life. Devices specifically engineered for high-speed lines, such as the TS0561SB-F, quickly bleed off surge energy in nanoseconds and block the destructive path, establishing a critical “safety barrier” around the data channel.

JY Electronics Protection Solution: The TS0561SB-F

JY Electronics has introduced the TS0561SB-F, a surge protection device purpose-built for demanding high-speed signal lines. Built on an ultra-low-capacitance platform and housed in an advanced, compact package, it effectively safeguards interfaces like USB 2.0, USB 3.X (Gen 1/Gen 2), HDMI, and other ultra-high-speed links.

Target applications include mobile phones, desktops, notebooks, game consoles, HDTVs, monitors, wearables, TWS earphones, and IoT modules.

Product Highlights

1、DFN1006-2L Ultra-Miniature Package (1.0 mm × 0.6 mm × 0.5 mm) – Maximizes PCB space savings.

2、Extremely Low 0.36 pF Line-to-Ground Capacitance coupled with 12 A Surge IPP (8/20 µs) – Achieves robust protection without degrading signal integrity.

3、Proprietary Deep-Snapback Front-Edge Patent – Clamps effectively at 6.5V@IPP=12A, outperforming parts with shallow or no snapback characteristics.

4、Robust ESD Compliance: Withstands 20kV contact 22kV air discharge per IEC 61000-4-2.

5、High Cut-off Frequency: Single-device cut-off frequency reaches 9.5GHz.

Application Example: USB 2.0

Performance Verification

Eye-diagram test