TR250-145-RA-C-0.5

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PTC Resettable fuses are a unique class of electrical components. They consist of a current-sensing element, such as a resistor, connected in series with a thermal element, such as a pellet of polymeric material, that is designed to offer a short circuit when heated by current. Unlike traditional fuses, PTC resettable fuses can be reset after they have opened due to a fault. TR250-145-RA-C-0.5 is a type of PTC Resettable fuses.

The application field of TR250-145-RA-C-0.5 can be mainly categorized into two parts: power electronic systems and consumer electronics systems. In power electronic systems, it is mostly used in DC to DC converters, voltage regulator modules, on-board chargers, motor drives, HVAC systems, automotive, railway and military electronics. In consumer electronics systems, it can be found in AC power adapters, desktop and laptop computers, cell phones, smart home appliances, portable electronics and other consumer electronics products.

The working principle of TR250-145-RA-C-0.5 is based on a thermally activated device, which consists of a resistor and a thermal element. The resistor serves as a current-sensing element that detects when the system has an over-current fault. When an over-current occurs, the resistor causes an increase in the temperature of the thermal element. Once the thermal element reaches a certain temperature, a short circuit known as a resettable fault opens. The device then remains in its open state until the temperature drops below the thermal threshold, at which point it is able to reset and resume normal operation.

The advantage of TR250-145-RA-C-0.5 over other types of resettable fuses is that it can protect the device or circuit from over-current without sacrificing its performance or longevity. This makes it an ideal choice for applications where current protection is required without compromising efficiency or durability. It is also capable of resetting itself after an over-current fault, which means it can help prevent repeat faults and extend the life of the device or circuit.

In summary, TR250-145-RA-C-0.5 is a type of PTC Resettable fuses that has wide application fields in power electronic and consumer electronic systems. Its working principle is based on a thermally activated device. The advantage of TR250-145-RA-C-0.5 is that it can protect the device or circuit from over-current without sacrificing its performance or longevity, and its ability to reset itself after an over-current fault helps extend the life of the device or circuit.

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