Heading 8541

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

36 declarable lines

Heading 8541 covers semiconductor devices and photosensitive semiconductor devices, including LEDs and photovoltaic cells, plus mounted piezo-electric crystals and parts. The heading splits first by device type: diodes, transistors, thyristors, photosensitive and LED devices, other semiconductor devices, crystals, and parts. Every declarable line in this heading carries a general (MFN) duty rate of Free.

Products in this heading

Small-signal and rectifier diodes sold as loose components
Light-emitting diodes (LED) and LED modules
Discrete transistors, including surface-mount parts
Crystalline silicon photovoltaic cells made into solar panels
Thyristors, diacs and triacs
Quartz crystals for clock and radio circuits
Semiconductor-based sensors and transducers, such as pressure or Hall effect sensors
Frames for photovoltaic modules assembled into panels

How to choose the right subheading

Identify the device type: diode, transistor, thyristor, photosensitive device, LED, transducer, crystal, or part.
Check whether the device is photosensitive, since photosensitive diodes and transistors go to 8541.49 rather than 8541.10 or 8541.21.
For transistors, note the dissipation rate and the operating frequency, which set the subheading and the statistical line.
For photovoltaic cells, note whether they are assembled in modules or panels, which separates 8541.42 from 8541.43.
For crystals and parts, note whether the crystal is mounted and, for parts, whether the article is a photovoltaic frame.

Often confused with

Electronic integrated circuits such as microcontrollers and memory chips
Circuits that combine many elements on one chip are classified in 8542, not 8541.
Heading 8542
LED lamps and LED light fittings
Finished LED light sources and lamps belong to 8539; bare LEDs and LED modules belong to 8541.
Heading 8539
Power supplies, adapters and static converters
Devices that convert power are classified as static converters, not as semiconductors.
Heading 8504
Flat panel display modules
Display modules are named in 8524 even when built from semiconductor parts.
Heading 8524
Cables, connectors and wiring harnesses
Insulated wire and cable are classified by heading 8544, not as semiconductor parts.
Heading 8544

Frequently asked questions

What is the HTS code for a light-emitting diode (LED)?

LEDs are classified under 8541.41.00.00, which carries a general (MFN) rate of Free.

What is the duty on photovoltaic cells assembled in modules or panels?

Crystalline silicon cells assembled in modules are classified under 8541.43.00.10 with a general (MFN) rate of Free. Other assembled cells go under 8541.43.00.80, also Free.

How do I classify a transistor with a dissipation rate under 1 W?

Unmounted chips, dice and wafers go under 8541.21.00.40. Finished parts with an operating frequency of 100 MHz or more go under 8541.21.00.75, and other finished parts under 8541.21.00.95; all three carry a general (MFN) rate of Free.

Guide written from the official schedule text. Rates quoted are general (MFN) rates; check the line page for trade agreement rates and the classification of your exact product.