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Coupled Flatwire Inductor for High-Performance Switching Regulators

High-performance switching regulators require powerful inductors with stable inductance and soft saturation to cope with high currents. Würth Elektronik has developed the WE-CFWI range of coupled flatwire inductors. The windings can be connected in series and in parallel. This means the compact, double choke can be used in SEPIC, CUK or Buck/Boost converters. The special core material enables high saturation currents of up to 62A, which is four times higher than previously comparable double chokes.

Soft saturation, a very tight tolerance inductance and very low dc resistance with only 10% tolerance is convincing. The leakage inductance of less than 0.5% reduces peaks in start-up currents. Excellent inductance stability over temperature and low dc resistance makes this component particularly suitable for high-performance switching regulators. This component is available in an extended temperature range up to 150 degrees C, and inductance values of up to 17.6μH.

Würth Elektronik
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