TS250-130F-RA-2

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PTC Resettable Fuses

PTC resettable fuses are a type of non-destructive overcurrent protection device, designed to serve as an alternative to standard fuses. These types of fuses are composed of an electrically resistive thermistor material that has two different current ratings, one near to its cut off current and the other one much higher, near to its hold current. The two-stage response is due to the increase in resistivity produced by an increasing current. This allows a PTC resettable fuse to marginally increase its resistance when a small excess of the rated current flows through it, thus cutting off the overload current and preventing further damage. As the temperature increases by the increasing current, the resistance eventually reaches a maximum value. At that point, the device starts to conduct current again. Once the fault circumstances have been eliminated, the device then returns to its original low-resistance state.

TS250-130F-RA-2 Application Field and Working Principle

TS250-130F-RA-2 is a PTC resettable fuse used to protect electrical appliances from short circuits, load imbalances, and other overloads. It is suitable for power circuits, and equipment with a rated voltage of 80V and a current range of 250mA to 13A. The TS250-130F-RA-2 is composed of a thermistor material, which has a high positive temperature coefficient and non-linear properties. It features a low-resistance in its normal state, which allows a certain current to flow through it. When overloaded, it will rapidly increase its resistance to a maximum value, thus cutting off the excess current to prevent further damage. Once the abnormal circumstances have been eliminated, the device will return to its original low-resistance state and restore the previous current flow.

The TS250-130F-RA-2 features a wide operating temperature range and can perform at temperatures ranging from -40°C to +105°C. It is sealed in a robust housing to ensure maximum protection from dust, debris, and other contaminants. The TS250-130F-RA-2 also features a high overload capability and is suitable for power circuits with a high overload requirement. Additionally, the device is highly accurate and features a tight tolerance, which ensures reliable and consistent operation.

The TS250-130F-RA-2 PTC resettable fuse is suitable for a wide range of applications. It can be used in medical equipment, industrial equipment, and consumer electronics. The device provides reliable and accurate overcurrent protection and is a good alternative to traditional fuses. In addition, it is highly cost-effective and saves money and time that would have been required for the replacement of a blown fuse.

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