In the datasheet for an overvoltage protector (TI BQ771815) there is a device I don't recognize:
It is used in the datasheet as a fuse which can be opened by an external signal from the overvoltage protector (in this case, by pulling the signal connection to ground). It is used to protect Lithium battery packs. This is from Page 10 of the BQ771815 datasheet:
What is this device called? Who produces them?