Resettable thermal fuses; This type disconnects power at designed temperatures and resets when temperatures return to normal. The fuse is made up of two heat-sensitive metal plates which are normally in contact during normal operation. When the temperature increases, the parts react to the heat and bend in such a way that the contact opens. This disconnects the circuit and prevents further heating. Once the temperature drops, the parts come together and the current starts flowing again.2. Non-resettable thermal fusesThis is a disposable fuse like the electrical fuse and must be replaced every time it burns out. This type of fuse has a temperature-sensitive connection that melts due to high temperature. Non-resettable thermal fuse 10 A +192°C, 277 V AC Protection built into the ICs Some components such as the ICS have built-in thermal overload protection that shuts down the IC when temperatures exceed safe limits. The shield, mainly used in regulators, processors and other integrated circuits, prevents damage to the integrated circuit and circuit board from excessive heating. The protection turns off the IC so that the input is reduced until the temperature drops. In some designs, increasing the temperature increases the resistance such that the current reduces the temperature. In this condition, the circuit may operate at lower power than designed and its output will reduce accordingly. This happens in computer systems and leads to reduced performance such as slowness