9030.90.25.00 - Printed circuit assemblies

This HTS subheading, 9030.90.25.00, specifically covers printed circuit assemblies that are classified as parts and accessories for instruments and apparatus used for measuring or checking electrical quantities, or for measuring and detecting ionizing radiations. These assemblies are the fundamental electronic components that house integrated circuits, resistors, capacitors, and other electronic elements, designed to perform specific functions within the broader apparatus. They are crucial for the operation of complex electronic measurement and detection equipment.

Within the scope of "Parts and accessories" for the broader category of instruments for measuring electrical quantities and radiation, this subheading distinguishes itself from its sibling, 9030.90.46.00 ("Other"), by its specific nature as a printed circuit assembly. While "Other" would encompass a wider range of miscellaneous parts not otherwise specified, this subheading provides a dedicated classification for these integral electronic boards. This ensures that the specific and complex nature of printed circuit assemblies, which are often high-value components, are accurately categorized.

As a leaf node, this subheading does not contain further subdivisions. Therefore, classification into 9030.90.25.00 relies on determining that a particular printed circuit assembly is indeed intended for use with instruments covered by heading 9030, and is not specifically excluded or classified under another more appropriate subheading based on its function or the type of instrument it supports. The key is to identify the ultimate purpose and integration of the printed circuit assembly within the parent measuring or detecting apparatus.