Semiconductor-based transducers
Parts suitable for use solely or principally with the apparatus of heading 85.35, 85.36 or 85.37. > Photosensitive semiconductor devices, including photovoltaic cells whether or not assembled in modules or made up into panels; light-emitting diodes (LED): > Semiconductor-based transducers > Semiconductor-based transducers > Semiconductor-based transducers
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Subheadings
Products classified under Tariff item 8541.51
CMOS Image Sensor
A CMOS image sensor that transduces light into digital electrical signals using an array of photosites on a semiconductor substrate. It is a semiconductor-based transducer because it converts physical phenomena (light) into electrical signals, and it is presented as a discrete component for use in digital cameras and other imaging devices.
8541.51.00Flow Sensor Silicon Chip
A thermal mass flow sensor silicon chip that uses semiconductor heater and resistor pairs to measure fluid flow based on heat dissipation. It is a semiconductor-based transducer because it converts a physical phenomenon (flow) into an electrical signal, and it is designed for use in medical ventilators and HVAC systems.
8541.51.00Gas Sensor Semiconductor Chip
A metal-oxide-semiconductor (MOS) gas sensor chip that detects reducing gases by measuring conductivity changes. It is a semiconductor-based transducer because it converts chemical phenomena (gas concentration) into an electrical signal, and it is used in air quality monitors and industrial safety equipment.
8541.51.00Hall Effect Sensor
A Hall effect sensor that uses a semiconductor to convert magnetic fields into voltage through the Hall voltage generation. It is a semiconductor-based transducer because it transduces magnetic field strength into an electrical signal, and it is used in motors, keyboards, and other contactless position sensing applications.
8541.51.00Inclinometer MEMS Sensor
A MEMS inclinometer that transduces tilt angle using semiconductor accelerometers and gravity vector analysis. It is a semiconductor-based transducer because it converts physical orientation into an electrical signal, and it is used in construction lasers and robotics.
8541.51.00MEMS Microphone
A MEMS microphone that converts sound waves into electrical signals using semiconductor technology. It is a semiconductor-based transducer because it transduces acoustic phenomena into electrical signals, and it is designed for audio applications in consumer electronics and hearing aids.
8541.51.00Photovoltaic Transducer Cell
A single photovoltaic transducer cell that converts light into electricity, presented as a discrete semiconductor device and not assembled into panels or modules. It is a photosensitive semiconductor device and a semiconductor-based transducer, used in sensors and small-scale power applications.
8541.51.00Semiconductor Pressure Sensor
A piezoresistive pressure sensor that uses a silicon diaphragm to transduce pressure into electrical resistance changes. It is a semiconductor-based transducer because it converts physical pressure into an electrical signal, and it is used in automotive, medical, and industrial applications.
8541.51.00Semiconductor Temperature Sensor IC
A semiconductor temperature sensor IC that uses bandgap voltage reference and pn-junction forward voltage variation to transduce temperature into an electrical signal. It is a semiconductor-based transducer because it converts thermal phenomena into electrical signals, and it is used in processors, HVAC, and medical devices.
8541.51.00Silicon Accelerometer Sensor
A MEMS accelerometer that uses semiconductor capacitive plates to transduce acceleration into electrical signals. It is a semiconductor-based transducer because it converts motion into an electrical signal, and it is used in smartphones, drones, and automotive applications.