Alumina Ceramic Feedthrough Insulator from Germany
Hermetically sealed 99.5% alumina ceramic feedthrough for high-vacuum systems, passing conductors while maintaining insulation. HTS 8546.20.00 for this ceramic electrical insulator in RF/microwave applications.
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
• Helium leak rate certification (<10^-9 atm cc/sec)
• RF power handling and VSWR specifications
• Distinguish from vacuum tube parts (8540.91)