Overvoltage protection modules with back-up protection for communication lines

摘要

A miniature station overvoltage protection module having a surge protector device and a back-up protector suitable for use on communication lines, includes a hollow housing having a top surface; a pair of line terminals and a ground terminal disposed in the housing top surface, extending inside the hollow housing. A holding bracket affixed to the housing ground terminal disposed within the hollow housing includes first and second conductors and a ground conductor, each of the first and second conductors extends towards one of the pair of line terminals and is in electrically conductive contact therewith; the ground conductor is in electrically conductive contact with the ground terminal. A surge arrester, having at least a pair of electrode terminals and a ground terminal connected to the housing ground terminal. Each one of the pair of surge arrester electrode terminals is in electrically conductive contact with one of the pair of line terminals. Additionally included is a pair of two terminal solid state back-up protection devices, one of the protection devices is disposed between each electrode of the surge arrester and the ground conductor, with one terminal of each being in intimate electrically conductive contact with each one of the surge arrester electrode terminals.