The PESD4V0Y1BCSF from Nexperia is a Bidirectional ESD Protection Diode that is designed to protect a single bidirectional signal line from transients and ESD-related damages. It has a reverse voltage from -4 V to +4 V. This power diode is suitable on lines where the signal polarities are both positive and negative to the ground. It utilizes an advanced clamping structure that provides a negative dynamic resistance. This power diode exhibits a snap-back behavior that strongly reduces that clamping voltage to the system. It is available in a surface-mount package that measures 0.6 x 0.3 x 0.3 mm and is ideal for cellular handsets, accessories, communication systems, computers and peripherals, HDMI 2.1, HDMI 2.0, USB 4, USB 3.2, Thunderbolt 3 and 4 data lines, and portable electronics applications.