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Surge arresters are hermetically sealed gas discharge tubes consisting of two or three electrodes properly spaced by insulators and filled with a noble gas. The main purpose of the surge arrester is to provide a conductive path for unwanted and excessive transients, thereby preventing the transient energy and voltages from damaging equipment and components as well as causing harm to people. Characteristic for surge arresters are the high current capability and the independence of environmental influences. Thanks to their high dielectric strength and low capacitance arresters have virtually no impact to the system they protect, a vital factor in telecommunications installations, the main application for surge arresters.

News

Nov. 29, 2018
"Products Conforming to European Union RoHS Directive / Product Information Concerning Revised China RoHS" has been updated.
Jun. 1, 2018
Voltage Protection Devices: "Voltage Protection Devices Product Map" has been updated. You can find the optimal products for your need as maximum surge currents, maximum continuous voltages, and applications have been added to the Product Map.
Mar. 26, 2018
Surge Arresters: "How to Use Surge Protection Devices: Surge Arresters" has been released.
Apr. 12, 2017
“Classifications of Medical Devices” and TDK Products’ Coverage of Those Classes has been released.
Mar. 12, 2017
Release of "myTDK", our membership-based service