HCTI High Current Toroidal Inductors Signal Transformer / Bel HCTI High Current Toroidal Inductors are vertical PCB mounted and feature high-frequency magnetics with a broad inductance and current range. The inductors offer a distributed air gap for high energy storage and are self-shielding for low magnetic radiation. The components are highly efficient with reduced core loss. The HCTI inductors are ideal for SMPS energy storage inductors, EMI/RFI filtering inductors, and DC-DC converter chokes.