1results about How to "Improve airtight performance" patented technology

This utility model discloses a fully sealed surface-mount tantalum capacitor, comprising a shell, a core, and a cover plate. One side of the shell is connected to the cover plate. A positive and negative lead are provided on the outer wall of the shell. The core is disposed inside the shell and connected to the inner wall of the shell through a conductive layer. An anode wire is provided on the core, with one end connected to a lead wire. The lead wire passes through the cover plate and connects to the positive lead. This capacitor employs a metal shell encapsulation structure, improving the capacitor's hermeticity and enabling it to maintain good performance even in harsh environments such as high temperature and high humidity. The connection point between the tantalum wire lead wire and the anode wire is flattened to increase the contact area and enhance welding strength. Furthermore, the welding point is located inside the metal shell, increasing the reliability of the connection. The metal shell is covered with a first insulating layer, followed by a third and fourth insulating layers, providing double-layer insulation protection and improving reliability.