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The PWH4012-100M1T combines a metal composite core with molded shielding to achieve low DC resistance, high saturation capability, and reduced acoustic/vibration sensitivity compared with traditional wire-wound parts. Inductance remains stable under DC bias to support tight output ripple targets and robust control-loop behavior. This part is well suited for high-density POL regulators, portable and handheld power rails, telecom modules, and industrial DC-DC stages that demand strong current handling in a 1.2mm height constraint.