Other
Semiconductor devices (for example, diodes, transistors, semiconductor-based transducers); photosensitive semiconductor devices, including photovoltaic cells whether or not assembled in modules or made up into panels; light-emitting diodes (LED), whether or not assembled with other light-emitting diodes (LED); mounted piezo-electric crystals; parts thereof: > Transistors, other than photosensitive transistors: > Other
Duty Rate (from China)
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
Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Subheadings
Products classified under HTS 8541.29.00
S8050 NPN Medium Power Transistor
S8050 is a TO-92 NPN transistor (20V/1.5A) popular in China-manufactured electronics for switching. Falls under HTS 8541.29.00. Common substitute for 2N3904 in cost-sensitive applications.
BC547 NPN Bipolar Junction Transistor
The BC547 is a general-purpose NPN bipolar junction transistor used for amplification and switching in electronic circuits. It falls under HTS 8541.29.00 as a non-photosensitive transistor other than photosensitive types. Commonly found in audio amplifiers, sensor interfaces, and hobbyist projects.
2N3904 NPN Switching Transistor
The 2N3904 is a widely used NPN silicon transistor for low-power switching and signal amplification applications. Classified under HTS 8541.29.00 as a non-photosensitive transistor. Essential component in Arduino projects, timers, and logic circuits.
IRF540N N-Channel MOSFET Transistor
The IRF540N is a power N-channel enhancement-mode MOSFET transistor rated for 100V/33A switching applications. Falls under HTS 8541.29.00 as other non-photosensitive transistors including MOSFETs. Used in motor drivers, power supplies, and DC-DC converters.
TIP41C NPN Power Transistor
TIP41C is a medium-power NPN bipolar transistor for audio amplifiers and power switching up to 100V/6A. Classified HTS 8541.29.00 as other transistors. Popular in DIY audio projects and industrial controls.
BS170 N-Channel Small Signal MOSFET
BS170 is a small signal N-channel MOSFET for low-power switching in RF and logic applications. HTS 8541.29.00 classification for non-photosensitive transistors. Common in amateur radio equipment and battery-powered devices.
2N7000 N-Channel MOSFET
The 2N7000 is a popular N-channel enhancement MOSFET for low-voltage switching up to 60V/200mA. Falls under HTS 8541.29.00 as other transistors. Widely used in USB circuits, relays, and logic level switching.
PN2222A NPN General Purpose Transistor
PN2222A is a TO-92 package NPN transistor for switching and amplification up to 40V/800mA. HTS 8541.29.00 for non-photosensitive transistors. Standard component in educational kits and consumer electronics.
IRFZ44N N-Channel Power MOSFET
IRFZ44N is a 55V/49A N-channel MOSFET for high-current switching in motor controls and inverters. Classified HTS 8541.29.00 as other power transistors. Essential for automotive and renewable energy applications.
MJE3055 NPN High Power Transistor
MJE3055 is a high-power NPN transistor (60V/15A) for audio output stages and power switching. HTS 8541.29.00 classification. Used in high-fidelity amplifiers and industrial motor drives.
C945 NPN Silicon Transistor
C945 is an NPN epitaxial silicon transistor for audio frequency applications and switching. HTS 8541.29.00 for general-purpose transistors. Used in preamplifiers and RF circuits.
TIP120 Darlington NPN Transistor
TIP120 is a Darlington NPN power transistor (60V/5A) with high current gain for driving relays and motors. Classified HTS 8541.29.00 as complex transistors. Ideal for microcontroller interfacing.
L7805 Voltage Regulator IC Transistor
While technically an IC, L7805 contains discrete pass transistors for 5V regulation. However, classifies as IC under 8542, but demonstrates boundary. Pure discrete regulators would be 8541.29.00.
BD139 Medium Power NPN Transistor
BD139 is a medium-power NPN transistor (80V/1.5A) for audio drivers and switching applications. HTS 8541.29.00 classification. Popular in European amplifier designs.
ULN2003A Darlington Transistor Array
ULN2003A contains 7 Darlington transistor pairs with suppression diodes for driving LEDs/displays. While array, individual transistors classify HTS 8541.29.00 if discrete. IC version 8542.