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|1. (WO2018037866) PROTECTIVE ELEMENT, CIRCUIT MODULE, AND PROTECTIVE ELEMENT PRODUCTION METHOD|
|Title:||PROTECTIVE ELEMENT, CIRCUIT MODULE, AND PROTECTIVE ELEMENT PRODUCTION METHOD|
With respect to a protective element having a space inside a cover and a circuit module wherein the protective element has been mounted, the objective of the invention is to prevent a decrease in the cover member adhesive strength caused by expansion of internal air so as to prevent damage to electronic components, and also prevent the influx of a sealing resin, a cleaning solution, or the like. The protective element comprises: an insulation base board (10); first and second electrodes (11, 12) provided on the insulation base board (10); a fusible conductor (13) disposed in such a manner as to bridge a gap between the first and second electrodes (11, 12); and a cover member (20) disposed on one surface (10a) side of the insulation base board (10) whereon the fusible conductor (13) has been placed. The internal space (25) wherein the fusible conductor 13 has been placed is provided with a vent hole (23) facing the exterior of the element, the vent hole (23) being sealed by a seal member (24).