Ferrite Core Memory Module from Germany
A ferrite core memory module consists of a grid of tiny ferrite toroids arranged on ceramic substrates, fired after shaping to create nonmetallic magnetic storage elements. It falls under HTS 6909.19.10.00 as a ceramic ware for technical uses, specifically designed for computer data storage in legacy systems. These modules were pivotal in early computing for their reliable, non-volatile memory properties.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.97, articles the product of a member state of the European Union, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 10 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Verify the ceramic substrate is fired above 800°C and meets Chapter 69 definitions to avoid exclusion as unfired articles
• Provide technical specifications confirming ferrite cores on ceramic base for laboratory/technical classification, including material composition certificates