Plastic SMD quartz crystal

The utility model provides a plastic SMD quartz crystal, which comprises an SMD base, a quartz crystal slice, an electrode and an outer shell. The utility model is characterized in that the SMD base comprises a bottom board, an insulator and leading wires, wherein the insulator is penetrated through the bottom board; the leading wire is arranged on the bottom board; the circumference of the bottom board is provided with an outer edge; the leading wires are fixedly connected with the bottom board through the insulator; the quartz crystal slice is arranged on the upper part of the bottom board; one end of the quartz crystal slice is connected to the two leading wires through conductive adhesive, and the other end of the quartz crystal slice is supported on the insulator; the outer shell is pressed and sealed on the upper end of the bottom board; four angles of the inner side of the outer edge corresponding to the outer shell are provided with bulges; one end of the electrode is fixedly sealed with the leading wires and the insulator by a packaging body, and the other end of the electrode is bent and tightly attached to the bottom surface of the packaging body. Because the utility model is provided with the outer edge on the circumference of the bottom board and the inner side of the SMD base is provided with quartz crystal slice, the outer shell and the bottom board are pressed and sealed by using 49 U/S crystal pressing and sealing device. The utility model does not need to replace expensive fine adjusting, pressing and sealing device, has the advantage of low cost and has a competitive power in markets.