Summary
- Nexperia has released ESD protection diodes for automotive Ethernet applications
- The diodes have low capacitance and high signal integrity for protecting higher-speed applications
- They offer up to 18 kV single-line ESD protection and cover a range of automotive board net voltages
- Automotive subsystem manufacturers can use a single diode to protect all automotive Ethernet applications
- The diodes are available in different packages with side-wettable flanks for automated optical inspection
Article
Nexperia, a semiconductor manufacturer, has introduced ESD protection diodes designed to meet the requirements of the OPEN Alliance for use in 10BASE-T1S automotive Ethernet applications. These diodes have low capacitance of 0.4 pF, making them suitable for protecting higher-speed applications such as 100BASE-T1 or 1000BASE-T1 in-vehicle networks while maintaining high signal integrity.
The diodes offer a single-line ESD protection solution of up to 18 kV according to IEC 61000-4-2, and up to 15 kV with 1,000 discharges. They cover the full range of automotive board net voltages, including 12 V for cars, 24 V for trucks and larger commercial vehicles, and 48 V for hybrid and electric cars. This allows automotive subsystem manufacturers to use a single ESD protection diode to protect all automotive Ethernet applications against electrostatic discharge effects, simplifying their board designs.
Specifically, the PESD1ETH10L-Q is available in a DFN1006-2 package measuring 1.0 mm x 0.6 mm x 0.48 mm, while the PESD1ETH10LS-Q comes in a DFN1006BD-2 package measuring 1.0 mm x 0.6 mm x 0.37 mm. These diodes feature side-wettable flanks that enable automated optical inspection (AOI) in applications requiring higher levels of soldering reliability. This allows for easier integration and implementation of the diodes in various automotive systems.
Alexander Benedix, Head of Product Group Protection and Filtering at Nexperia, highlighted that these diodes not only support compatibility with legacy standards like LIN and CAN but also enhance modern in-vehicle networks with exceptional signal integrity. By bridging the gap between current and future automotive technologies, Nexperia aims to assist its customers in building smarter, more versatile, and future-proof vehicles that can adapt to the evolving automotive landscape.
Overall, Nexperia’s ESD protection diodes provide a comprehensive solution for automotive Ethernet applications, offering high levels of protection against electrostatic discharge while maintaining signal integrity. With their compact packaging and compatibility with a wide range of automotive board net voltages, these diodes simplify the design process for automotive subsystem manufacturers and contribute to the development of smarter and more adaptable vehicles for the future. By combining backward compatibility with legacy standards and support for modern in-vehicle networks, Nexperia aims to empower its customers to build innovative and future-ready automotive systems.
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