TCF250-120T-RB-B-0.5

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PTC Resettable Fuses, also known as Polymeric Positive temperature Coefficient (PPTC) fuses, are over-current protection devices that automatically react to abnormal current levels by entering an open circuit state when the set current is exceeded. One type of PTC Resettable Fuse is the TCF250-120T-RB-B-0.5, which is a one-time fuse able to automatically reset itself after the overload is removed.The TCF250-120T-RB-B-0.5 is designed with a low power temperature-sensitive element, which acts as an trigger that causes the device to open when an overload or short circuit occurs. This low power temperature sensitive element is called a Positive Temperature Coefficient, or PTC, which measures the increase in temperature resulting from the current overload. Once the temperature of the PTC reaches the threshold, the device opens and interrupts the current. After the high temperature condition is eliminated, the PTC will cool down and reset the circuit.The TCF250-120T-RB-B-0.5 is designed for automotive applications such as power distribution, lighting, and electrical systems as well as battery protection in small consumer electronics products. It is rated for 250V/120A, with a 0.5 second trip time. Its advantage over other fuses is that it can reset itself without the need for manual intervention, while providing effective and long-lasting over-current protection. The device is configured in a radial leaded disc package for assembly using automatic pick and place operations. The TCF250-120T-RB-B-0.5 is designed to provide reliable over-current protection, as well as expand the lifetime of the product in which it is used. By using a PTC Resettable Fuse, designers can reduce the complexity and cost of the electrical protection system. Furthermore, the device is also able to reduce the fire hazard risks associated with thermal runaway. In conclusion, the TCF250-120T-RB-B-0.5 PTC Resettable Fuse offers efficient over-current protection while reducing the risk of fire hazards. Its low power temperature-sensitive element enables the device to automatically open when an overload or short circuit occurs, and then reset after the temperature returns to normal. The TCF250-120T-RB-B-0.5 is designed for automotive applications such as power distribution, lighting, and electrical systems as well as battery protection in small consumer electronics products, and its radial leaded disc package allows for easy assembly and installation.

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