1. Thermal Cutoffs A thermal cutoff (TCO) is a onetime, temperatureactivated safety device that opens the electrical circuit when the rated temperature is reached. It provides irreversible overheat protection to reduce the risk of component damage and fire in electrical equipment. Key benefits Reliable overheat protection: quickly interrupts current when temperature exceeds the safe limit. Risk reduction: helps prevent damage to components and reduces fire hazards in appliances and power supplies. Easy inline installation: designed for straightforward integration in harnesses, PCB traces, or housing assemblies. Compact and versatile: available in small cylindrical formats to fit tight spaces and a variety of configurations. Durable construction: metal housing with a ceramic core supports stable, longterm performance. No reset required: after activation, the device must be replaced to restore protection. Attributes and specifications (model variants) Function: irreversible cutoff at the preset temperature to stop current flow. Temperature ratings: available in multiple preset temperatures; select the rating that matches your device's maximum operating temperature. Size and packaging: compact cylindrical form with varying lengths and diameters to suit different layouts. Material: metal housing with a ceramic insulating core; suitable for inline wiring. Termination: options include axial leads, radial leads, or prewired configurations to fit different assemblies. Performance: consistent opening temperature across typical operating and ambient conditions. Compatibility: suitable for a wide range of applications including home appliances, power adapters, battery packs, heating elements, and other equipment that requires reliable thermal protection. Use scenarios Appliance protection: used in toasters, coffee makers, and compact heating elements to prevent overheating when airflow is reduced or a component fails. Power electronics protection: integrated in chargers, power supplies, and LED drivers to interrupt current if internal heat rises beyond safe levels. Battery and heating devices: installed in battery packs or portable heating products to automatically disengage when temperatures exceed the safe threshold. Installation guidance Place in series with the load. Ensure secure connections with appropriate lead lengths and insulation. Choose the correct temperature rating to align with the device's operating temperature and safety margins. After activation, with a thermal cutoff to restore protection; this device is not resettable. Note This description reflects typical thermal cutoff characteristics and common use cases. For exact temperature ratings, dimensions, lead configurations, and compatible models, refer to the specific product variant you are selecting.