Increased demand for comfort functions and higher performing Advanced Driver Assistance Systems (ADAS) are requiring faster in-vehicle transmission interfaces. For image transmission using SerDes (LVDS), PoC (Power over Coax) has become mainstream to reduce the weight of the wiring harness by transmitting signal and supplying power within a single coaxial cable. The evolution of cameras used in automobiles continues with increased current capacity and faster image transmission for higher resolution images, as well as heating functions to defog the camera lens.
This article presents examples of the use and effects of PoC filter inductors and chip beads.

With the spread of cloud computing and smartphones and the launch of 5G in 2020, the amount of data that moves on the internet is increasing as high-volume video and game data is added to existing documents, images, and sound data.
In addition, technologies are evolving, exemplified by AI, and a digital transformation (DX) is taking place as a result of the use of big data and the internet of things (IoT). To support these advances, however, large numbers of high-performance servers that can process large volumes of data will be needed. In conjunction with the increased performance of processors and various types of ICs, higher clock speeds of power supply ICs on server boards, high current power saving, miniaturization, noise countermeasures in data lines, and surge countermeasures have become urgent issues. Here, we introduce TDK products for addressing and solving these problems including the VLBU series of ferrite power inductors compatible with the high-efficiency needs of VR13 and VR14 applications, the FS series of DC-DC converters with embedded μPOL™, solutions using the ALT series of pulse transformers and ALC series of common mode filters and chokes, and chip varistors and ceramic transient voltage suppressors used for surge protection.