Quadrant Photodiode Position Sensor
Four-quadrant photodiode for precise beam position detection in optical alignment systems. Falls under HTS 8541.49.10 as other photosensitive semiconductor diodes. Critical for laser positioning and tracking applications.
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More Specific Codes
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If parts of measuring instruments
Components specifically for listed optical instruments classify as parts.
If parts of other electrical machines
Unspecified electrical apparatus parts classification.
If imported as complete machine semi-conductor manufacturing equipment
Photodiodes integral to semiconductor manufacturing machines follow machine classification.
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Import Tips & Compliance
• Include position sensitivity specifications (microns) in technical data
• Mark clearly as 'position sensing diode' not tracking instrument
• Separate from any associated optics to maintain device classification
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