Silicon Intensifier Target Camera Tube from Germany
SIT tubes use silicon targets with electron beam intensification for extremely low-light television camera applications like astronomy. Classified in HTS 8540.20.20.80 as other cathode-ray television camera tubes with photocathode elements.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%
Import Tips
• Astronomical end-use letters prevent industrial reclassification under machine vision codes
• Quantum efficiency specs mandatory to distinguish from display CRT phosphor tubes
• Cleanroom packaging required; contamination voids photocathode warranty and classification