Other
Electrical transformers, static converters (for example, rectifiers) and inductors; parts thereof: > Parts: > Other: > Printed circuit assemblies: > Other
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(b) [to this subchapter]
Products classified under HTS 8504.90.75.00
Solar Charge Controller Printed Circuit Assembly
This printed circuit assembly (PCA) contains the rectifying diodes, MOSFETs, and control ICs for a solar MPPT charge controller that converts variable DC input from solar panels to stable battery charging voltage. It falls under HTS 8504.90.75.00 as a PCA component of a static converter used in renewable energy systems. The assembly is designed for surface-mount integration into compact solar controllers.
EV Battery Charger Onboard PCA
Printed circuit assembly for electric vehicle onboard chargers featuring power factor correction circuits, DC-DC converters, and CAN communication interfaces to convert AC grid power to DC battery voltage. Classified under HTS 8504.90.75.00 as parts of static converters for automotive applications. Includes high-voltage isolation and thermal management components.
LED Driver Power Supply PCA
This PCA integrates constant current LED drivers, PFC circuits, and dimming controls on a single board for high-power LED lighting fixtures. It functions as the static conversion heart of LED power supplies, stepping down mains voltage to precise LED forward voltages. HTS 8504.90.75.00 covers such specialized lighting converter assemblies.
Industrial Inverter Control PCA
Printed circuit assembly for variable frequency drives (VFDs) containing IGBT gate drivers, DSP controllers, and DC-link voltage sensing circuits. Converts DC to variable AC for industrial motor control as part of static inverter systems. Falls under HTS 8504.90.75.00 for power electronics assemblies.
UPS Power Supply Backup PCA
Printed circuit board assembly for uninterruptible power supplies featuring online double-conversion topology with inverter, rectifier, and battery charger circuits integrated. Provides seamless AC-DC-AC conversion for critical power backup. HTS 8504.90.75.00 classification for UPS static converter electronics.
Audio Amplifier Power Stage PCA
High-current printed circuit assembly for Class D switching audio amplifiers containing power MOSFETs, gate drivers, and LC output filters. Provides efficient DC-to-audio frequency power conversion for professional sound systems. Classified under HTS 8504.90.75.00 as static converter parts.
Welding Power Source Control PCA
Printed circuit assembly for inverter-based MIG/TIG welders with IGBT bridge drivers, arc voltage feedback, and wire feed synchronization circuits. Converts single-phase AC to high-frequency DC then controlled AC welding output. HTS 8504.90.75.00 for industrial static converters.
Telecom Rectifier Shelf PCA
High-reliability printed circuit assembly for -48VDC telecom rectifiers featuring hot-swap capability, ORing diodes, and power line communication interfaces. Converts AC mains to distributed DC power for central office equipment. Falls under HTS 8504.90.75.00 as static converter parts.
Server Power Distribution PCA
Printed circuit assembly for 48V to 12V/5V/3.3V point-of-load conversion in rack servers, featuring multiphase buck regulators and PMBus digital monitoring. Part of distributed power architecture static converters. HTS 8504.90.75.00 classification for server power electronics.
Medical Grade Power Converter PCA
Printed circuit assembly for patient monitor and diagnostic equipment power supplies with 4kV isolation, low leakage current (<100uA), and dual-output configuration. Meets IEC 60601-1 medical electrical equipment standards for static converters. HTS 8504.90.75.00 for specialized medical power electronics.
RF Power Amplifier Driver PCA
Printed circuit assembly providing DC bias and low-level RF drive for LDMOS/GaN power transistors in broadcast transmitters and radar systems. Functions as specialized static converter for RF power amplification chains. Classified HTS 8504.90.75.00.
DC Motor Drive Controller PCA
Brushless DC motor controller printed circuit assembly with 3-phase H-bridge, Hall sensor interface, and velocity loop compensation for industrial automation. Provides DC to controlled 3-phase AC conversion for servo applications. HTS 8504.90.75.00 as static converter part.
Battery Management System Power PCA
Printed circuit assembly handling cell balancing, charge equalization, and DC-DC conversion for lithium battery packs in energy storage systems. Contains balancing MOSFETs, current sensors, and isolated power supplies. HTS 8504.90.75.00 for static converter components.
High Voltage Power Supply PCA
Printed circuit assembly for generating 1-30kV DC from low voltage input using flyback/multi-stage multiplier topology for X-ray generators and scientific instruments. Features HV feedback, spark gap protection, and precise regulation. HTS 8504.90.75.00 classification.
Industrial DC-DC Converter Module PCA
Ruggedized printed circuit assembly for 24V to 5V/3.3V conversion in factory automation with 4:1 input range, galvanic isolation, and sync rectifier efficiency >92%. Designed for harsh environment DIN-rail power systems. HTS 8504.90.75.00 for static converters.