TR250-145U

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PTC Resettable Fuses are becoming increasingly popular due to their ability to provide circuit protection without need for replacement of the fuse. The TR250-145U is a type of PTC Resettable Fuse used in a variety of applications in electronic devices.

The TR250-145U PTC Resettable Fuses are designed to provide circuit protection from short circuit and overload conditions. The PTC Resettable Fuse is a polymeric Positive Temperature Coefficient (PTC) device which acts as a one-time fuse. When an overload of sufficient intensity is present, the PTC Resettable Fuse increases in temperature and its effective resistance increases thereby limiting the current flow.

Once the over current has been removed, the resistance of the PTC Resettable Fuse rapidly returns to the normal state allowing the protection to be reset quickly with no damage to the device. Thanks to the fast resetting ability, the PTC Resettable Fuse is an ideal choice for situations where precious components in a circuit need to be protected from damage.

The TR250-145U PTC Resettable Fuse is suitable for a wide range of modern electronic equipment such as computers, home appliances, automotive components, and industrial machinery. This type of PTC Resettable Fuse has a maximum voltage rating of 125V AC, a maximum current rating of 5A and an overload temperature of 149 degrees Celsius. The TR250-145U is UL and CSA listed and is available in a variety of sizes and package types.

When used in conjuction with other electronic components, the TR250-145U provides excellent circuit protection in a wide array of electronic applications. Not only does it provide fast or instantaneous overcurrent protection, but it also offers protection against short circuits and high start-up currents. Plus, it can also help to protect against voltage spikes and noise interference.

The TR250-145U PTC Resettable Fuse works on the basic principle of thermionic emission. When an overload causes an increase in current through the PTC Resettable Fuse, it generates heat as a result of the increase in electrical resistance. This rise in temperature causes the PTC Resettable Fuse to open and disconnect the circuit, resetting itself once the overload is removed and the temperature cools off.

In conclusion, the TR250-145U PTC Resettable Fuse provides an effective solution for circuit protection in a number of applications. Thanks to its characteristics of thermionic emission, it offers fast overcurrent protection, resetting quickly during normal operating conditions. Thus, the TR250-145U PTC Resettable Fuse is an ideal choice for protection against circuits malfunction and failure in many electronic devices.

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