The WE-MPSB series from Würth Elektronik is the world’s first ferrite bead that specifies how it performs under high-current transients, helping to protect and extend the life of the application. It features an ultra-low RDC which delivers the lowest self-heating in its class at high currents. The component is ideal for DC-DC applications requiring high efficiency.
The bead was developed based on the requirements of circuits that load the multilayer ferrites with temporary peak currents exceeding the rated current. The maximum pulse load capabilities of the multilayer ferrites have been determined by measurement using an in-house test routine that is different from that of the fuses. In comparison with existing multilayer structures, the layer structure has been optimised to generate higher current load capability using lower resistances. The WE-MPSB series is thus ideally suitable for use in circuits with pulse currents.
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