TRF250-120T-RD

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PTC Resettable Fuses are suitable for overcurrent protection and short circuit protection of electrical appliances. They are widely used in electronic equipment, power supplies, telecommunication equipment, automobiles and other industries. TRF250-120T-RD is a kind of PTC Resettable Fuses, which is the most widely used. It is widely used in automotive electronics, computer products, consumer products, medical products, communications products, etc.

The working principle of TRF250-120T-RD PTC Resettable Fuses is based on the over-current protection of positive temperature coefficient (PTC) thermistors. The PTC thermistor has a positive temperature coefficient, that is, as the temperature rises, the resistance rapidly increases. It is inversely proportional to the temperature. When the current through PTC thermistor exceeds the rated current value, the temperature of PTC thermistor rises rapidly due to Joule heat, causing the resistance value to increase rapidly and a large current is blocked to work in over-current protection. When the temperature of PTC thermistor falls, the resistance value of PTC thermistor returns to the original low resistance ASAP, and the power circuit is reset to continue working, so as to complete the protection of the circuit.

TRF250-120T-RD PTC Resettable Fuses is typically applied in automotive electronics, computer products, consumer products, medical products, communications products, etc. It has the characteristics of small volume, fast response, reliable performance, stable performance, no spark and etc., and it has low contact resistance, good electrical conductivity, high motor load, and high current carrying capacity. Especially, it can bear larger load current in a short time, making it suitable for vehicles. It can also effectively isolate short circuit, overcurrent and reverse current, and it won\'t easily broken because of its solid construction.

TRF250-120T-RD PTC Resettable Fuses has a large breaking capacity and can prevent overheating, welding and damage of fuses. It works mainly in the protection of overcurrent and short circuit, and it has the advantages of automatic reset and low reset voltage, low voltage drop, etc. It has no spark discharge and a high current carrying capacity. It is durable and can be used for a long period of time. It is also environmental friendly as there is no need to continually replace the fuse due to its self-reset feature.

The excellent performance and features of TRF250-120T-RD PTC Resettable Fuses make it widely used in the fields of automotive electronics, computer products, consumer products, medical products, communications products, etc. There are two types of mountings available for users to choose from, that is surface-mount and insert-mount. With the help of these mounts, it can be easily installed and integrated in electrical and electronic products. In addition, it is also easier to replace the fuse in the event of a short circuit or overcurrent.

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