While the development of next-generation vehicles for fully automated driving is gaining momentum, vehicle architecture is beginning to undergo major changes. Among them, the automotive network that connects ECUs responsible for advanced driver-assistance system (ADAS) is a very important element.
One particular focus is on automotive Ethernet for automotive networks, with 100BASE-T1 (100 Mbps) and 1000BASE-T1 (1 Gbps) for sensor systems in cameras, radar, and LiDARs. Furthermore, the 10BASE-T1S, a new standard for automotive Ethernet with a transmission speed of 10 Mbps, is gaining more attention.
Sample applications: Possible applications include actuator systems and sensors.

While smartphones, TWS, and other mobile devices are becoming smaller and more sophisticated, devices and ICs are becoming more vulnerable to electrostatic discharge (ESD), surges, and other types of immunity. These mobile devices are increasingly being hand-held, operated, and worn. Therefore, ESD countermeasures are needed more than ever, while ESD protection components are also increasingly being used to prevent ESD. TDK offers a lineup of chip varistors as components that can protect circuits from ESD. Lastly, using actual devices, this article presents examples of ESD countermeasures using chip varistors for actual failures that occur when ESD enters a device.

TDK has a lineup of multilayer chip varistors that protect equipment for malfunction and failure due to ESD (electrostatic discharge), and we have long contributed to solving customer ESD problems.
Recently, however, although multilayer chip varistors have been effective in the past, they have been unable to provide sufficient protection as customer devices have become smaller, lighter, and more sophisticated.
To investigate the cause of this problem, we conducted ESD tests assuming the miniaturization of customer equipment.