Infineon ESD245-B1-W0201E6327: TVS Diode for ESD Protection in High-Speed Data Lines
In the realm of modern electronics, the integrity of high-speed data transmission is paramount. As interfaces like USB 3.x, HDMI, DisplayPort, and high-frequency serial buses become faster, their susceptibility to damaging electrostatic discharge (ESD) and electrical overstress (EOS) events increases significantly. Protecting these sensitive circuits is a critical design challenge, and the Infineon ESD245-B1-W0201E6327 emerges as a premier solution engineered specifically for this task.
This component is a Transient Voltage Suppression (TVS) diode array in an ultra-compact 0201 package. Its primary function is to clamp transient overvoltages to a safe level, shunting dangerous ESD spikes—such as those defined by the stringent IEC 61000-4-2 standard (±30 kV air/contact discharge)—away from the protected IC. What sets the ESD245-B1-W0201 apart is its exceptional ability to provide this robust protection without degrading the signal integrity of the data lines it guards.

A key performance metric for any protection device used on high-speed lines is its ultra-low capacitance. The ESD245-B1-W0201 boasts a remarkably low typical capacitance of just 0.35 pF. This minimal capacitive loading is crucial because it prevents signal distortion, attenuation, and jitter, which are detrimental to achieving the high data rates required by modern standards. Designers can integrate this TVS diode directly into the data path without worrying about bandwidth limitation or bit errors.
Furthermore, the device features an extremely low clamping voltage. When an ESD strike occurs, the TVS diode activates almost instantaneously, diverting the current and preventing the voltage across the data line from rising to a level that could damage the downstream circuitry. This low clamping voltage ensures that even the most delicate semiconductors remain safe.
Housed in a miniature 0201 DFN package, the ESD245-B1-W0201 is ideal for space-constrained PCB designs, such as those found in smartphones, tablets, laptops, and other portable consumer electronics. Its bidirectional protection simplifies design by safeguarding lines regardless of voltage polarity.
ICGOOODFIND: The Infineon ESD245-B1-W0201E6327 is an optimal choice for designers seeking robust ESD protection for high-speed interfaces. Its winning combination of ultra-low capacitance, excellent clamping performance, and miniature form factor makes it an indispensable component for ensuring both the reliability and signal integrity of today's and tomorrow's high-speed data applications.
Keywords: ESD Protection, TVS Diode, High-Speed Data Lines, Low Capacitance, Signal Integrity
