Vehicle networks are shifting from CAN and LIN to higher-speed automotive Ethernet, supporting ADAS, centralized compute, cameras, radar, lidar, and software-defined vehicle architectures. This increases the need for ESD protection that preserves high-speed signal integrity. The PESD1ETH10LS-Q protects one in-vehicle network line and is designed for OPEN Alliance IEEE 10BASE-T1S, 100BASE-T1, and 1000BASE-T1 applications. The low capacitance of 0.4pF maximum helps minimize loading on differential Ethernet signals.
OPEN Alliance guidance places ESD protection close to the connector so transient energy can be diverted before reaching the common-mode choke, dc-blocking capacitors, and Ethernet PHY. With a 24V working reverse voltage and 100V minimum trigger voltage, the PESD1ETH10LS-Q supports connector-side placement while avoiding unwanted triggering during normal coupled-voltage events.
The PESD1ETH10LS-Q provides ESD protection up to 18kV according to IEC 61000-4-2 and withstands repeated contact discharges. Its compact 1mm x 0.6mm DFN1006BD-2 package includes side-wettable flanks for automated optical inspection and is AEC-Q101 qualified for automotive applications.
The related PESD5V0H1BSF extends the portfolio to highly sensitive high-speed interfaces, using ultra-low capacitance for datalines in communication, consumer and computing equipment.
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