Ferrite Core Memory Module
A ferrite core memory module consisting of a grid of tiny ferrite toroids arranged on ceramic substrates, fired after shaping to create nonmetallic magnetic storage elements. It falls under 6909.19.90 as a ceramic ware for technical uses, given its laboratory or industrial memory applications.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | 4.5% | — | 4.5% |
| 🇲🇽Mexico | 4.5% | — | 4.5% |
| 🇺🇸United States | 4.5% | — | 4.5% |
| 🇩🇪Germany | 4.5% | — | 4.5% |
| 🇯🇵Japan | 4.5% | — | 4.5% |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported as a part of a computer system
Memory modules for computers are often classified as parts of automatic data processing machines.
If the module functions as an inductor or transformer
Ferrite cores used as electrical inductors may fall under electrical machinery headings.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Document the firing process and final application to ensure the module qualifies as a ceramic product under Chapter 69
• Be aware that if the module includes significant electronic circuitry, other headings may apply
• Keep records of the ceramic substrate composition for CBSA verification
Related Products under Tariff item 6909.19.90
3D Ferrite Core Memory Stack
A three-dimensional stack of ferrite core planes mounted on fired ceramic frames, used for high-capacity technical memory in minicomputers. The ceramic components are fired after shaping and serve a technical function, qualifying under tariff item 6909.19.90 as other ceramic wares for technical uses.
Alumina Ceramic Evaporating Dish
An alumina-based ceramic evaporating dish, fired for use in analytical chemistry, is employed to evaporate liquids and recover precipitates. Its high-purity alumina body resists chemical attack and thermal shock, making it ideal for laboratory processes. This product falls under tariff item 6909.19.90 as ceramic ware for laboratory use.
Alumina Ceramic Thrust Bearings
Aluminum oxide (alumina) ceramic thrust bearings for precision instruments in chemical analysis labs. Fired to achieve high compressive strength and electrical insulation for technical operations, these bearings are classifiable under 6909.19.90 as other ceramic wares for technical uses.
Boron Nitride Ceramic Bearing Rollers
Boron nitride ceramic rollers for vacuum laboratory systems and chemical reactors. Hexagonal BN structure fired for lubricity and thermal shock resistance in technical uses, these rollers are classifiable under 6909.19.90 as other ceramic wares for technical uses.
Ceramic Buchner Funnel
A perforated porcelain funnel designed for vacuum filtration in chemical laboratories. It is fired after shaping to withstand corrosive filtrates and high temperatures, making it a ceramic ware for laboratory use under heading 69.09.
Ceramic Evaporating Dish
A shallow, wide porcelain dish used in laboratories to evaporate liquids and concentrate solutions. It is fired after shaping, offering resistance to acids and high temperatures, and is a ceramic ware for laboratory use.