Shielded inductors have a closed magnetic circuit, meaning the entire closed magnetic path is made of magnetic material. This structure protects the wires, circuits, and coils from external magnetic fields and reduces the electromagnetic interference generated by the circuit affecting other components. Shielded inductors have very low magnetic reluctance, with toroidal cores being a representative type of closed magnetic circuit structure.

Non-shielded inductors have an open magnetic circuit, where the magnetic path is not enclosed, resulting in an open state of the magnetic field lines. This open magnetic field in the circuit can cause electromagnetic interference or energy loss. Non-shielded inductors typically have higher DCR (DC resistance) compared to closed magnetic circuit inductors when producing the same inductance with the same volume and number of coil turns. Representative core types for open magnetic circuits include U-shaped and DR-shaped cores.



 

GOTREND Technology As A Green Enterprise For Global Sustainability
It is stated in our company philosophy that GOTREND enterprise group had the vision of setting up a dream enterprise that work for the sustainable growth, learning, creativity, profitability and happiness of every employee, partners, our customers, investors, and in helping to bring about a better living world. We respect Lifestyles of Health and Sustainability (LOHAS), support actions towards better environmental protections and are committed to design, manufacture and produce energy efficient, environmental friendly products.

Green manufacturing is our belief and all GOTREND products including raw materials, spare parts, solvent, consumables, packing materials, as well as production process are in conformity with WEEE（Waste Electrical and Electronic Equipment 2002/96/EC）and RoHS compliance. GOTREND preferred eco-friendly manufacturing methods and materials.