MALVERN, PA — Vishay Intertechnology, Inc. (NYSE: VSH) said its VETH100A1DD1 electrostatic discharge protection diode passed IEEE 10BASE-T1S compliance testing, positioning the component for use in emerging automotive Ethernet network architectures.
The diode, packaged in a DFN1006 form factor, also meets OPEN Alliance electromagnetic compatibility specifications covering 10BASE-T1S, 100BASE-T1 and 1000BASE-T1 automotive Ethernet applications.
Automakers and suppliers are increasingly adopting automotive Ethernet standards to support advanced driver assistance systems, software-defined vehicle platforms and connected in-vehicle electronics while reducing wiring complexity.
The 10BASE-T1S standard is designed to connect multiple vehicle nodes over a single twisted-pair cable operating at 10 megabits per second across distances of up to 25 meters.
Unlike higher-speed point-to-point automotive Ethernet systems, 10BASE-T1S uses a multidrop bus architecture that allows multiple nodes to share the same physical connection.
Vishay stated that low capacitance is critical in these systems because electrostatic discharge protection devices may be installed at each node on the network. The VETH100A1DD1 has capacitance below one picofarad, aligning with the requirements outlined in the 10BASE-T1S specification.
The company said the device is intended to support both lower-speed multidrop automotive networks and higher-speed point-to-point Ethernet applications.
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