Vishay Intertechnology has announced that its VETH100A1DD1 ESD protection diode has passed IEEE 10BASE-T1S compliance testing, supporting its use in automotive One-Pair Ethernet (OPEN) bus architectures designed for next-generation in-vehicle networking applications.

The VETH100A1DD1, offered in the DFN1006 package, meets all three OPEN Alliance EMC Test Specifications for ESD protection devices supporting 10BASE-T1S, 100BASE-T1, and 1000BASE-T1 automotive Ethernet applications. Vishay stated that the device has successfully completed compliance testing for all three standards, with test reports available upon request.

Electronics Industry Monthly image of the Vishay Intertechnology VETH100A1DD1 automotive Ethernet ESD protection diode.

The VETH100A1DD1 ESD protection diode from Vishay Intertechnology is designed to support signal integrity and EMC compliance across automotive One-Pair Ethernet network architectures.

10BASE-T1S is an automotive Ethernet networking standard designed to support multidrop bus topologies over a single twisted-pair cable. Unlike point-to-point automotive Ethernet links such as 100BASE-T1 and 1000BASE-T1, the 10BASE-T1S architecture allows multiple nodes to share the same physical communication medium while supporting cable lengths of up to 25 meters at data rates of 10 Mbit/s.

Because multidrop automotive Ethernet networks may incorporate ESD protection devices at multiple nodes throughout the system, low capacitance is critical to preserving signal integrity across the communication bus. According to Vishay, the VETH100A1DD1 was specifically engineered to provide capacitance below the 1 pF threshold described within the 10BASE-T1S test specification.

The company stated that the device is intended to support a broad range of automotive Ethernet applications, including multidrop network architectures and higher-speed point-to-point links used throughout modern vehicle electronics systems.

Automotive Ethernet technologies are increasingly being deployed across advanced driver assistance systems (ADAS), zonal architectures, infotainment systems, sensor networks, and centralized vehicle computing platforms as automotive manufacturers continue transitioning toward software-defined vehicle architectures.

About Vishay Intertechnology:

Vishay Intertechnology, Inc. (NYSE: VSH) manufactures discrete semiconductors and passive electronic components used across automotive, industrial, telecommunications, computing, consumer electronics, military, aerospace, and medical applications. Headquartered in Malvern, Pennsylvania, the company develops technologies including diodes, MOSFETs, optoelectronics, resistors, capacitors, inductors, sensors, and power management components supporting electronic system design and power conversion applications worldwide. For more information, please click here.

Source/Photo Credit: Vishay Intertechnology


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Molly Bakewell Chamberlin
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