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The PWD0504-821M0T delivers very high energy storage capability for aggressive ripple suppression and output voltage stabilization in buck and boost converters. Its open magnetic circuit structure ensures predictable inductance behavior under DC bias while maintaining compact size and cost efficiency. The optimized ferrite core minimizes core loss and thermal rise, making it suitable for notebook power rails, LCD backlight supplies, embedded DC-DC modules, industrial power filtering, and consumer electronics requiring high inductance within limited PCB space.