Silicon Photodiode Chips
Unmounted silicon chips designed as photodiodes that convert light into electrical current. These fall under HTS 8541.49.10.10 as photosensitive semiconductor devices in the form of unmounted chips used for optical sensing applications. They are raw dice ready for packaging in sensors or detectors.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If optimized for photovoltaic power generation
Photovoltaic cells for electricity production fall under dedicated solar cell subheading regardless of mounting.
If integrated processors or memory on same die
Devices functioning primarily as integrated circuits shift to Chapter 85 heading 8542.
If after die attach or wire bonding
Mounted or assembled photosensitive dice become 'other' diodes under 8541.49.80.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Verify wafer fabrication origin and purity specs via certificates of analysis to meet US semiconductor import standards
• Classify as unmounted only if not attached to any lead frame or substrate; packaged versions go to 8541.49.80
• Avoid misclassification as solar cells (8541.40) by confirming non-photovoltaic primary function
Related Products under HTS 8541.49.10.10
SWIR InGaAs Photodiode Wafers
Short-wave infrared InGaAs wafers for machine vision and spectroscopy beyond 1700nm. HTS 8541.49.10.10 covers these unmounted photosensitive semiconductor wafers for defense and industrial apps.
GaAs Photodiode Wafers
Gallium arsenide semiconductor wafers generating photocurrent from infrared light. Classified in 8541.49.10.10 as unmounted photosensitive wafers for telecom and laser detection. These full wafers are sliced into dice post-import for device fabrication.
CCD Image Sensor Dice
Charge-coupled device (CCD) semiconductor dice for capturing visible light images. These unmounted chips under 8541.49.10.10 are photosensitive semiconductors used in scientific cameras and astronomy equipment before packaging.
InGaAs PIN Photodiode Dice
Indium gallium arsenide PIN junction dice for near-infrared fiber optic receivers. These unmounted photosensitive semiconductors under 8541.49.10.10 enable high-speed data transmission detection.
APD Avalanche Photodiode Wafers
Germanium wafers for avalanche photodiodes providing internal gain for low-light detection. Classified 8541.49.10.10 as unmounted photosensitive wafers for LIDAR and spectroscopy.
Quantum Dot Photodetector Chips
PbS quantum dot semiconductor chips tunable across SWIR spectrum for hyperspectral imaging. HTS 8541.49.10.10 applies to these emerging unmounted photosensitive dice.