DISCHARGE TYPE SURGE ABSORPTION ELEMENT

摘要

PROBLEM TO BE SOLVED: To provide a discharge type surge absorption element having a stable property that sparkover voltage does not change, and which can be a surface mounting component having excellent thermal shock resistance with a small square cylindrical thin ceramic envelope. SOLUTION: In this discharge type surge absorption element 1, recessed parts 13 are formed in end faces of electrodes 3 arranged facing each other with a discharge gap, the recessed parts are coated with an electrode coating material having a sputtering prevention effect and ribs 14 for a partition in a "+" shape are projected from upper surfaces of the recessed parts to control the movement of the electrode coating material. COPYRIGHT: (C)2005,JPO&NCIPI