MOSFET Silicon Wafer for Power Electronics
300mm silicon wafer with fabricated MOSFET transistor arrays for electric vehicle inverters and power supplies. Classified as unmounted chips/wafers under HTS 8541.29.00.40 for non-photosensitive transistors. These are intermediate products before singulation into individual dice.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If made up into power supply modules
Assembled into static converters shifts to heading 8504 for electrical transformers and converters.
If after dicing and mounting but before final encapsulation
Mounted but unencapsulated transistors fall under the general 'other transistors' subheading.
If polymer substrate wafers mistaken for plastic articles
Silicon wafers are semiconductor devices, not plastics; material composition determines heading.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Specify wafer fab process node (e.g
• 40nm) and transistor type (planar vs FinFET) in documentation
Related Products under HTS 8541.29.00.40
Darlington Transistor Wafer Array
Silicon wafer with Darlington paired transistor arrays for high gain switching. HTS 8541.29.00.40.
RF Silicon Wafer with Multiple Transistor Types
Multi-project silicon wafer containing various RF transistor test structures. Unmounted under HTS 8541.29.00.40.
LDMOS RF Power Transistor Wafer
Laterally Diffused Metal Oxide Semiconductor wafer for broadcast transmitters. Unmounted under HTS 8541.29.00.40. High power RF amplification capability.
Silicon Carbide JFET Wafer
SiC Junction Field Effect Transistor wafer for high-temperature sensing. HTS 8541.29.00.40 classification. Extreme environment operation.
BiCMOS Transistor Wafer
Bipolar CMOS mixed-signal transistor wafer for analog-digital interfaces. Unmounted chips HTS 8541.29.00.40.
SOI MOSFET Transistor Wafer
Silicon-On-Insulator MOSFET wafer for radiation-hardened electronics. HTS 8541.29.00.40 unmounted.