8516.90.45.00 - Printed circuit assemblies

HTS code 8516.90.45.00 specifically classifies printed circuit assemblies that are designed as integral parts for microwave ovens falling under subheading 8516.50. These assemblies are the electronic "brains" of the microwave, containing the printed circuit boards with various electronic components that control the oven's functions, power regulation, and user interface.

This classification is distinguished from its sibling category, 8516.90.35.00, which covers more substantial structural or decorative assemblies such as the cooking chamber, supporting chassis, door, or outer case. While those are physical components that form the microwave's structure, 8516.90.45.00 focuses solely on the integrated electronic circuitry. It also differs from the residual category 8516.90.50.00, which is for any other parts not specifically listed.

As this is a leaf node, there are no further subcategories within 8516.90.45.00. Therefore, the classification relies on the precise nature of the item being a printed circuit assembly intended for use in microwave ovens as defined by 8516.50. This means the assembly must contain a printed circuit board populated with electronic components and be a component part of a microwave oven.