PROTECTION ELEMENT AND BATTERY PACK

A protection element includes: an insulating substrate; a fuse element provided on the insulating substrate; a heating element to blow the fuse element; a heating element power supply electrode; a first extraction electrode leading from the heating element power supply electrode and connected to a first end of the heating element; an intermediate electrode connected to the fuse element; a heating element connecting electrode connecting the heating element and the intermediate electrode; a second extraction electrode leading from the heating element connection electrode and connected to a second end of the heating element; and an insulating layer that covers the heating element, the first extraction electrode, and the second extraction electrode, and on which the intermediate electrode is laminated. The intermediate electrode does not overlap with the first extraction electrode and overlaps with the second extraction electrode with the insulating layer interposed therebetween.