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Transformer Bobbin Assembly

Plastic bobbin with integrated terminals for winding transformer coils in power converters. As a specialized part for electrical transformers, it qualifies under the 'other parts' of HTS 8504.90.96.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳ChinaFree+35.0%35%
🇲🇽MexicoFree+10.0%10%
🇨🇦CanadaFree+10.0%10%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+10.0%10%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

3926.90.99Lower: 22.8% vs 35%

If generic plastic molded parts

Plastic articles not dedicated to transformers classify under heading 3926.

8504.90.75Higher: 40% vs 35%

If laminated cores or identifiable cores

Specific core parts have dedicated subheadings, unlike bobbins in 'other'.

8536.69.40Same rate: 35%

If primarily electrical connectors

Bobbin-terminal combos dominated by connection function shift to 8536.

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Import Tips & Compliance

Provide bobbin pinout diagrams and winding specs to prove transformer-specific design

Plastic content requires accurate material declaration to avoid Chapter 39 plastics ruling