High-Frequency Wound Amorphous Core for Switch-Mode Transformers
A compact wound core made from amorphous metal alloy, optimized for high-frequency switch-mode power supply transformers in computing devices. Falls under HTS 8504.90.96.42 as it's pre-wound specifically for transformer integration, reducing energy losses at frequencies above 20kHz.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If laminated rather than wound construction
Amorphous cores in laminated (non-wound) form classify under different transformer core subheadings.
If for electrical apparatus over 1kVA
Certain wound cores for larger power apparatus may shift to insulated electrical parts headings.
If fully assembled as static converter
Incorporation into complete rectifiers or converters changes classification to finished static converters.
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Import Tips & Compliance
• Provide frequency response test data proving high-frequency design, distinguishing from audio or low-frequency cores
• Label with amorphous alloy composition percentage, as alloy content affects duty calculations and origin rules
• Ship in anti-corrosion packaging; surface damage often leads to rejection as unfit for transformer incorporation
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