Static Convergence Magnet Assembly
Static convergence magnet assemblies are rare-earth magnet assemblies mounted permanently inside CRTs for static electron beam convergence adjustment. These integral image correction parts are factory-set during tube production and classified under tariff item 8540.99.90.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the magnets are imported separately for general use
Permanent magnets of metal are classified under heading 85.05.
If the magnet assembly is part of an electron gun
Parts of electron guns are classified under subheading 8540.91.
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
• Classify the magnet assembly as a part of the CRT, not as a permanent magnet under heading 85.05
• Provide evidence of its function in beam convergence
• Verify if the rare-earth magnets require any special import permits
Related Products under Tariff item 8540.99.90
CRT Deflection Yoke Holder
This holder is used for mounting deflection yokes on CRT necks, aligning magnetic fields for electron beam scanning. It is a part of a cathode-ray tube, but it is not an electron gun or an RF interaction structure. Therefore, it falls under this tariff item as 'other' parts.
CRT Internal Magnetic Shielding
This mu-metal internal shielding sheet is placed between the CRT electron gun and deflection area to prevent external magnetic interference. It is a part of a cathode-ray tube, but it is not an electron gun or an RF interaction structure. Thus, it is classified under this tariff item as 'other' parts.
CRT Neck Extender Sleeve
This precision glass or ceramic sleeve extends the CRT neck for custom electron gun positioning in specialized applications, such as medical and scientific CRTs. It is a part of a cathode-ray tube, but it is not an electron gun or an RF interaction structure. Therefore, it falls under this tariff item as 'other' parts.
CRT Purity Glass Sample Disc
This small glass disc with phosphor coating is used during CRT manufacturing to check glass purity and contamination levels. It is a part of a cathode-ray tube, but it is not an electron gun or an RF interaction structure. Thus, it is classified under this tariff item as 'other' parts.
CRT Socket with Pin Contacts
This ceramic base socket with 19-pin gold-plated contacts is used for CRT neck board connections, providing filament and grid power. It is a part of a cathode-ray tube, but it is not an electron gun or an RF interaction structure. Therefore, it falls under this tariff item as 'other' parts.
CRT Spacer Band Tooling
CRT spacer band tooling consists of specialized bands used during the manufacturing of cathode-ray tubes to maintain precise glass-to-glass spacing before frit sealing. These reusable tools are essential for high-volume tube production and are classified as parts of cathode-ray tubes under tariff item 8540.99.90.