Infineon ESD108-B1-CSP0201: Ultra-Miniature ESD Protection Diode for High-Speed Data Interfaces

In the rapidly evolving landscape of electronics, the demand for faster data transfer and more compact device designs continues to intensify. Protecting sensitive integrated circuits from electrostatic discharge (ESD) is critical, especially in high-speed data applications where signal integrity is paramount. Addressing this need, Infineon Technologies introduces the ESD108-B1-CSP0201, an ultra-miniature ESD protection diode designed specifically for next-generation high-speed interfaces.

The ESD108-B1-CSP0201 stands out for its exceptionally small form factor, packaged in a 0201 (0603 metric) chip-scale package (CSP). This minimal footprint makes it an ideal solution for space-constrained applications such as smartphones, wearables, IoT modules, and ultra-thin laptops, where every millimeter on the PCB is valuable. Despite its tiny size, this diode offers robust protection, capable of safeguarding data lines against ESD events exceeding ±8 kV contact discharge as per the IEC 61000-4-2 international standard.

A key strength of this component is its performance in high-speed data interfaces. It is engineered to protect lines with data rates exceeding 10 Gbps, making it suitable for modern protocols like USB 3.2/4, HDMI 2.1, Thunderbolt™, and high-speed memory interfaces. The device exhibits an ultra-low dynamic resistance (RDYN) and an extremely low clamping voltage, ensuring that transient voltage spikes are suppressed quickly and effectively before they can damage the downstream ICs. Furthermore, its ultra-low capacitance of typically just 0.35 pF is crucial for minimizing signal distortion, preserving signal integrity, and preventing bit errors in high-frequency data transmission.

The ESD108-B1-B1-CSP0201 is not just about protection and speed; it also enhances design reliability. Its construction is based on a sophisticated silicon technology, ensuring high stability and performance over the lifetime of the end product. It is also AEC-Q101 qualified, making it a reliable choice for automotive applications where reliability under harsh conditions is non-negotiable.

ICGOODFIND: The Infineon ESD108-B1-CSP0201 successfully merges the often conflicting requirements of miniaturization, robust ESD protection, and preservation of signal integrity in high-speed circuits. It empowers designers to protect their innovations without compromising on performance or board space, solidifying its role as a critical component in the foundation of modern electronic design.

Keywords: ESD Protection, High-Speed Data Interfaces, Ultra-Low Capacitance, Chip-Scale Package (CSP), Signal Integrity