In the example here, the HCTC and HCTI are key components of a switch mode power supply (SMPS) design useful in addressing common mode noise, differential mode noise, power factor correction, and output filtering. In a typical line filter with power factor correction, a single HCTC serves as the common mode choke (CM), two HCTIs serve as the differential mode inductor (DM), and a third and fourth HCTI can be used in power factor correction (PFC) and the output filter. One HCTC/HCTI kit can assist in all of these applications, helping to streamline the design, prototyping, and selection processes.