ElectronicsThe TLC Electronics TRA200 with PTC Resettable Fuses Through Hole P=5.1mm RoHS is a resettable fuse designed to protect circuits from short-circuits and other over-current events. It is a PTC (positive temperature coefficient) resettable fuse that will trip at a predetermined temperature (125 degrees Celsius) and then automatically reset itself once the current is returned to normal. It is made of a bi-metallic strip configuration that fundamentally acts as a switch that opens and closes as the temperature changes. This fuse is RoHS compliant, and its terminal pitch is 5.1mm. It is designed to work in high temperatures, making it suitable for automotive, medical, and handheld device applications.