Gas discharge tube having enhanced ratio of leakage path length to gap dimension

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A circuit protection device comprising:

• a gas discharge tube (GDT) including first and second electrodes each including an edge and an inward facing surface, such that the inward facing surfaces of the first and second electrodes face each other, the GDT further including a sealing portion implemented to join and seal the edge portions of the inward facing surfaces of the first and second electrodes to define a sealed chamber between the inward facing surfaces of the first and second electrodes, the GDT further including an electrically insulating portion implemented to provide a surface in the sealed chamber and to cover a portion of the inward facing surface of each of at least one of the first and second electrodes such that a leakage path within the sealed chamber includes the surface of the electrically insulating portion;
• and
• a first clamping device electrically connected to the first electrode of the GDT.

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