TDK's ADL3225VT was designed for use in high speed in-vehicle LAN applications as power inductor in a power over data line circuit. The weight of the wire harness in an in-vehicle LAN has a direct impact on fuel consumption. As a result, power over coax (PoC) has been incorporated into the design of in-vehicle LANs to carry both signal transmission and power supply lines, thus reducing the weight of the wire harness. Typically, multiple components must be combined to achieve the broadband characteristics required for PoC, which reduces the amount of space available on the board. TDK’s ADL3225VT power inductor provides a space-saving solution with a single component that achieves high impedance in the broadband range that is equivalent to the impedance characteristics achieved in a conventional setup using multiple power supply inductors. The ADL3225VT has a high self-resonant frequency and good DC superimposition characteristics through an original coil design and construction different to that of a conventional power inductor.