Infineon TVS3V3L4UE6327: Bidirectional ESD Protection Diode for High-Speed Data Interfaces

In the era of high-speed connectivity, protecting sensitive electronic components from electrostatic discharge (ESD) is more critical than ever. The Infineon TVS3V3L4UE6327 stands out as a specialized bidirectional ESD protection diode designed specifically to safeguard high-speed data interfaces such as USB 3.0, HDMI, and other high-frequency signal lines.

This device offers robust ESD protection up to ±20 kV (contact discharge per IEC 61000-4-2), effectively clamping transient voltage spikes before they can damage downstream integrated circuits. Its bidirectional functionality allows it to handle both positive and negative voltage transients with equal efficiency, simplifying circuit design by eliminating polarity concerns.

A key advantage of the TVS3V3L4UE6327 is its extremely low clamping voltage, which ensures that the protected line voltage is limited to a safe level, well below the breakdown threshold of sensitive chips. Moreover, it features an ultra-low capacitance of just 0.35 pF (typical). This minimal capacitive loading is crucial for maintaining signal integrity on high-speed data lines, preventing distortion, and ensuring compliance with stringent USB 3.0 and HDMI standards without compromising data transfer rates.

Housed in a compact SOT143-4 (TO-253-4) package, this diode is ideal for space-constrained PCB designs commonly found in portable electronics, servers, and communication infrastructure. Its ability to protect four lines with a single component further enhances board space efficiency.

ICGOOODFIND: The Infineon TVS3V3L4UE6327 is an optimal solution for designers seeking reliable, high-performance ESD protection that is virtually invisible to high-speed data signals, ensuring both robustness and signal fidelity.

Keywords: ESD Protection, Bidirectional TVS Diode, Low Capacitance, High-Speed Data Interfaces, Clamping Voltage