This document serves as the acceptance record for a watch wireless charging coil manufactured by Hongri Shengwei Technology. It details the specifications, materials, and electrical characteristics of the coil, ensuring it meets the required standards for integration into a watch device. The document includes a schematic diagram of the coil, along with a bill of materials outlining the components used in its construction, such as copper wire, lead-free tin bar, magnetic sheet, and adhesive.
Key specifications include the coil's dimensions, inductance (6.8uH ±10%), and DC resistance (40mΩ Max). The document also outlines the testing procedures and acceptance criteria, with signatures from quality control and engineering departments confirming the coil's compliance. This acceptance document is crucial for maintaining quality control and ensuring the reliability of the wireless charging functionality in the final product.