Ferrite Core Memory Module
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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If assembled into inductors or transformers
Complete electrical assemblies with ferrite cores shift to Chapter 85 for electrical machinery, not pure ceramic wares.
If integrated as hybrid electronic circuits
When ferrite memory forms part of a hybrid circuit on ceramic substrate, it classifies under electronic integrated circuits in Chapter 85.
If imported as parts of computers
Ferrite memory modules specifically for ADP machines may fall under Chapter 84 as computer parts rather than standalone ceramic technical wares.
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Import Tips & Compliance
• 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
Related Products under HTS 6909.19.10.00
Twisted Ferrite Core Rope Memory
Twisted wire rope memory using ferrite cores threaded through fired ceramic bobbins for aerospace technical applications. HTS 6909.19.10.00 applies as ceramic wares specifically for ferrite core memories in chemical or technical uses. This radiation-hardened design was common in space missions.
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. Classified under HTS 6909.19.10.00 due to its ceramic construction for laboratory and other technical applications in data processing. The firing process ensures durability for non-magnetic interference environments.
Core Rope Memory Cassette
A modular cassette housing multiple ferrite core planes on ceramic substrates, fired for technical memory storage in industrial control systems. Falls under HTS 6909.19.10.00 as specialized ceramic ferrite core memories for chemical/process technical uses. Provides removable high-reliability data storage.
Military Grade Ferrite Memory Plane
Single-plane ferrite core memory on ruggedized fired ceramic base for defense laboratory simulations and technical data logging. HTS 6909.19.10.00 covers these as ceramic wares for chemical/other technical uses including military R&D. Designed for extreme temperature and vibration resistance.
Industrial Ferrite Core Memory Bank
Multi-plane ferrite core memory bank mounted on fired ceramic frames for chemical process control technical applications. Classified in HTS 6909.19.10.00 for its ceramic technical ware construction serving laboratory-equivalent industrial uses. Enables real-time data storage in harsh environments.