PFRA.017.2 Circuit Protection

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

PTC Resettable Fuses

PTC resettable fuses are also known as polyswitch, PTCR or polyfuse fuses. These are self-resetting fuses, meaning that when an overload current is detected, the fuse trips and interrupts the circuit. Once the short is removed and the temperature of the fuse is reduced, the device will automatically reset, allowing the circuit to continue to work. These fuses are commonly used in many portable electronic devices such as laptops, cell phones, digital cameras, and more.

PFRA.017.2 Application field and Working Principle

The PFRA.017.2 is a specific type of PTC resettable fuse that is designed with a low operating current and high operating voltage. It is most commonly used in consumer electronics for portable devices such as laptops, cell phones, and digital cameras. The PFRA.017.2 has a trip current of 0.017A and an operating voltage of 250V. It is designed with a low trip current so that it does not disrupt the operation of the device, but is still able to protect the device when an overload is detected.

The working principle of the PTC resettable fuses is based on a combination of temperature and current. When the device is operating within normal specifications, the temperature in the fuse will remain stable. However, when an overload current is detected, the temperature in the fuse will increase, causing the device to trip and thus resetting the fuse. After the fuse has tripped, it will cool down and reset itself, allowing the circuit to continue to operate.

The advantage of using a PTC resettable fuse is that it is capable of protecting the device without the need to replace the fuse. This saves time and money since no fuse replacement is necessary. However, this type of fuse does have a limited life and may fail after prolonged periods of use. Therefore, it is important to monitor the fuse and replace it when necessary.

Another advantage of using a PTC resettable fuse is that it is relatively easy to install and use. This type of fuse is commonly found in consumer electronic devices, so most people are familiar with its installation and maintenance. Additionally, PTC resettable fuses are very affordable, making them a great option for protecting your electronic devices.

In conclusion, PFRA.017.2 PTC resettable fuses are a reliable and affordable option for protecting any portable electronic device. The ability of the fuse to reset itself without the need to replace the fuse makes it an ideal choice for many applications. Additionally, the installation and maintenance of the fuse is relatively straightforward, making it a user-friendly option for any consumer.

The specific data is subject to PDF, and the above content is for reference