TOROIDAL CHOKES and choke coil is a part used in electrical circuits to allow DC current to flow through while blocking AC current from passing. These coils are used in a number of electrical devices. When used as part of a radio's circuitry, it falls into one of two frequency classes: audio or radio.
The GRT+FR-4 PLATE series coils are made from iron power provide high performance, compact size, and low cost. High current. Lowest EMI
These products have high saturation magnetic-flux density and excellent DC superposition characteristics.
Theses products have low leakage and acoustic noise is minimal
Filtering and levelling chokes for switching power supplies, DC/DC converters and similar applications.