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J310 N-Channel JFET RF Transistor from China

J310 is an N-channel JFET depletion-mode transistor for wideband RF applications from 30 MHz to 2 GHz. HTS 8541.29.00.65 applies to this high-frequency non-photosensitive transistor. Popular in RF test equipment and receivers.

Duty Rate — China → United States

50%

Rate breakdown

9903.91.0550%Effective with respect to entries on or after January 1, 2025, articles the product of China, as provided for in subdivision (f) of U.S. note 31 to this subchapter
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter

Import Tips

JFET vs BJT/MOSFET distinction important but all classify same if RF specs met

TO-92 package recognizable; declare gain-bandwidth product specs

Common in amateur radio imports; hobbyist quantities may trigger different scrutiny