Thermal Cutoffs A one time thermal cutoff fuse that opens the circuit when the device reaches its rated trip temperature. It provides reliable overheat protection and prevents damage or safety risks from excessive heat. Why you need it Protects equipment from overheating to reduce the risk of component damage and fire. Helps meet safety and compliance requirements with dependable, fixedtemperature protection. Simple, compact protection that works without user intervention. How it works The internal fuse element reacts to heat and permanently interrupts current when the trip temperature is reached. Designed for fast response and long term reliability in typical operating environments. Key attributes Function: non resettable overtemperature protection that opens at the specified trip point. Compatibility: suitable for use in power supplies, battery packs, charging circuits, heating elements, motors, and various electronic devices with heating concerns. Size: offered in multiple body sizes and lead configurations to fit compact or larger assemblies; includes common axial and other termination styles. Material: metal housings with ceramic or other insulation encapsulation as required by model; built to endure heat and environmental conditions. Performance: precise trip temperature adherence, stable operation over life, and reliable protection under typical use conditions. How to choose Select the trip temperature to align with the device's maximum safe operating temperature. Ensure the physical fit from the chosen size and lead/termination style matches your design. Confirm electrical ratings (voltage, current) correspond to your circuit requirements and safety standards. Use scenarios In a power supply to halt operation if the transformer or components overheat during peak load. In a battery pack or charger to prevent thermal runaway or overheating during charging and discharging. In an appliance heating element or motor to shut down automatically if internal temperature becomes unsafe.