2N3904 NPN Switching Transistor
The 2N3904 is a low-power NPN transistor rated at 625mW dissipation, ideal for signal amplification and low-speed switching in audio circuits and hobbyist projects. Classified under HTS 8541.21.00 for transistors under 1W, excluding photosensitive types. Widely used in Arduino boards and small signal applications.
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More Specific Codes
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If for medium-power variants like 2N3055
Transistors exceeding 1W dissipation move to the higher dissipation subheading.
If mounted on circuit boards as assemblies
Board-mounted transistors classify as electrical apparatus rather than discrete devices.
If photosensitive versions like phototransistors
Light-sensitive transistors fall under photosensitive semiconductor devices.
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Import Tips & Compliance
• Provide electrical characteristic sheets showing dissipation <1W for customs verification
• Label shipments clearly separating low-power from medium-power variants to prevent reclassification
• Comply with semiconductor export controls; declare end-use to avoid ITAR restrictions
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