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The PWH4012-1R0M1T is optimized for high frequency synchronous buck regulators where minimal inductance and low DCR reduce losses and improve dynamic response. The metal composite core provides high saturation current capability to withstand peak load pulses, while molded shielding helps meet EMI requirements and supports tight placement near controllers and ICs. Typical use includes processor/ASIC rails, high density POL modules, telecom power cards, and industrial systems that must deliver high current in a 4×4×1.2mm profile.