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High-Purity Alumina Submount Insulator

99.9% alumina ceramic submount for power semiconductor modules, providing thermal and electrical isolation. HTS 8546.20.00 for ceramic electrical insulators in IGBT modules.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
๐Ÿ‡จ๐Ÿ‡ณChina3%+37.5%40.5%
๐Ÿ‡ฒ๐Ÿ‡ฝMexico3%+10.0%13%
๐Ÿ‡จ๐Ÿ‡ฆCanada3%+10.0%13%
๐Ÿ‡ฉ๐Ÿ‡ชGermanyFree+10.0%10%
๐Ÿ‡ฏ๐Ÿ‡ตJapanFree+12.5%12.5%

Alternative Classifications

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

8542.90.00.00Higher: 50% vs 40.5%

If hybrid circuit ceramic substrates

Electronic integrated circuits and microassemblies in 8542.

Not sure which classification is right?

The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code โ€” and can price the duty on it in the same conversation.

Import Tips & Compliance

โ€ข Thermal impedance and DBC compatibility data

โ€ข JEDEC JESD51 thermal testing documentation

โ€ข Avoid 8542 IC packaging classification