RUEF300-AP

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PTC Resettable Fuses are new cutting edge electrical components designed not only to protect circuits from over-current conditions, but also to reset itself when power is disconnected. RUEF300-AP is one of the new developments in the PTC Reset Fuse family that boasts many features such as very low resistance, fast response time, environmental insulation, and low cost.

This device is used in a variety of applications, including industrial printed circuit boards, consumer electronics and home appliances. The RUEF300-AP is a diode-bridge type element, well suited for re-settable protection of digital equipment. The fuse can also be used in place of an existing thermal breaker.

The primary purpose of this fuse is to protect against overheating and overloading of circuits and wiring, a common issue in consumer electronics. As this type of fuse does not have to be replaced, this removes the need for a technician to visit the premises to replace a blown fuse. Additionally, this type of fuse also provides over-charge protection for Lithium-Ion batteries.

The RUEF300-AP fuse has a rated current of 300 mA. This means that if a circuit were to draw more than 300 mA, the fuse would limit the current flow, protecting the rest of the circuit. Additionally, the fuse has a resistance of less than 0.2 Ohms, allowing for quick and easy protection for the circuit.

The working principle behind the RUEF300-AP fuse can be broken down into two steps. The first step is to detect when the circuit is drawing more than the rated current. If the current reaches a set threshold, the fuse is designed to react very quickly and open the circuit. This process is equivalent to opening a switch, just much faster than a physical switch.

Once the fuse opens the circuit, it also has the ability to reset itself. To do this, the fuse needs to sense that the current has been reduced to a level below the set threshold. When this happens, the fuse will reset and be ready to protect the circuit again in case of a power surge.

The RUEF300-AP is a very useful device in many applications. Due to its very low resistance and fast response time, the fuse is well-suited for digital safety. Additionally, the fuse can easily be reset without having to be replaced, making it a cost-effective solution for electronic circuits. For these reasons it is an important component in the PTC Reset Fuse family.

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