RXEF250K

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PTC resettable fuses play a crucial role in providing circuit protection in a wide range of applications. Among them, the RXEF250K series of PTC resettable fuses offer reliable and cost-efficient protection in applications such as industrial circuit protection, telecommunication systems, electronic equipment, electronic components, consumer electronics, automotive electronics, medical electronics, and consumer products. This article will discuss the application field and working principle of the RXEF250K PTC resettable fuse series.

The RXEF250K series of PTC resettable fuses are designed to provide overcurrent and overtemperature protection in a wide variety of circumstances. The fuses feature a built-in PTC that trips at a specified temperature and current level when overloaded. The fuse resets itself after cooling down, allowing for a reset capability and protecting the connected equipment from any overcurrent or overtemperature conditions.

The RXEF250K series is ideally suited for critical applications where circuit design constraints prevent the use of a standard fuse. The series offers many advantages over conventional fuses, including higher current ratings, a wide operating temperature range, a small form factor, and a low cost. Additionally, the series utilizes a special PTC construction that eliminates the need for a bulky safety enclosure.

The RXEF250K PTC fuses are available in a variety of sizes and current ratings. The standard series offers current ratings from 0.25A to 25A. The series also includes a special 0.0625A rating which is ideally suited for tuning sensitive circuits. The fuses are designed to provide reliable overcurrent and overtemperature protection, even under the harshest operating conditions. In addition, the fuses have a maximum temperature rise of 100°C for higher current ratings. This makes them suitable for use even in difficult applications where elevated ambient temperatures are present.

The RXEF250K series of fuses utilize a thermal sensing principle based on the thermistor effect. The fuses feature an integrated PTC that trips at a specific temperature and current level when overloaded. The PTC resets itself after the applied power is removed and the internal temperature has cooled down. This reset capability prevents any further damage to the connected equipment due to overcurrent or overtemperature conditions.

The RXEF250K series of PTC resettable fuses offers many advantages over traditional fuse protection. In applications where space is limited, the fuses can provide reliable overcurrent and overtemperature protection without having to use a bulky safety enclosure. Furthermore, the fuses are designed to reset automatically after such faults, further reducing the risk of damage to the connected equipment. The series is also cost-effective and offers wide operating temperatures, making it suitable for a variety of applications.

In summary, the RXEF250K series of PTC resettable fuses offer reliable and cost-effective protection in a wide range of applications. The built-in PTC resets automatically after a fault, providing additional protection to the connected equipment. The series is also easy to install and offers a wide operating temperature range. The RXEF250K series of fuses is an ideal solution for a variety of circuit protection needs.

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