Low Noise BC549 NPN Transistor from China
BC549C variant with ultra-low noise for audio preamplifiers and sensor interfaces, 500mW dissipation. Specifically engineered for minimal 1/f noise in HTS 8541.21.00.95 category. Ideal for precision measurement equipment.
Duty Rate — China → United States
50%
Rate breakdown
9903.91.0550%Effective with respect to entries on or after January 1, 2025, articles the product of China, as provided for in subdivision (f) of U.S. note 31 to this subchapter
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Noise figure vs frequency documentation critical for low noise grade verification
• 1/f corner frequency specs distinguish from standard transistors
• High impedance circuits require specialized ESD floor life ratings