| 摘要 |
PROBLEM TO BE SOLVED: To maintain insulation performance while increasing a cross sectional area of a soluble conductor to improve the rating of a protection element.SOLUTION: A protection element includes: an insulation substrate 11; a heating element 14 laminated on the insulation substrate 11; an insulation member 15 covering the heating element 14; first and second electrodes 12 laminated on the insulation substrate 11 on which the insulation member 15 is laminated; a heating element extraction electrode 16 which is laminated on the insulation member 15 so as to overlap with the heating element 14, and electrically connected to the heating element 14 on a current path between the first and second electrodes 12; and a soluble conductor 13 which is laminated across the heating element extraction electrode 16 to the first and second electrodes 12 and fuses the current path between the first electrode 12 and the second electrode 12 with heat. Inflow parts 40 into which the melted soluble conductor 13 flows are provided below fusion parts 13a of the soluble conductor 13. |
