RUEF110-AP Circuit Protection

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PTC Resettable Fuses are electrical components used as a cost-effective alternative to traditional fuses or circuit breakers. They are used in different applications ranging from consumer electronics and automotive to industrial equipment. The RUEF110-AP is a Polymeric Positive Temperature Coefficient (PPTC) Resettable Fuses used to protect circuits against short circuits, overloads and reverse polarity. It is a UL 248-14 approved device to ensure safe operation of the application.

The RUEF110-AP is a surface-mount device with a 110V AC/125V DC voltage rating and an interrupting capacity of 20A. It has a 7.2mm square body with a maximum hold current of 6A and a dissipation power of 0.75W. The rated operating temperature range is -40°C to +85°C and has a maximum instantaneous trip current of 10A. The RUEF110-AP is RoHS compliant and can be soldered onto a printed circuit board using reflow soldering.

RUEF110-AP is an autoreset device which means that it will automatically cut off the flow of current if the current exceeds its rated value. It is designed to automatically reset itself once the overload dissipates. This makes the RUEF110-AP a cost-effective alternative to traditional fuses as it eliminates the need to replace blown fuses. It also has a reverse polarity protection feature which means that it will protect the electronic equipment from damage if the supply polarity is reversed.

The working principle of the RUEF110-AP is based on its PPTC element. When a current passes through the element, it heats up causing the element to expand, which then causes physical contact between its terminals. This physical contact causes a sudden increase in the resistance of the element, which in turn restricts the current flow to the rated value or less. If the current exceeds the rated value, the element will melt and the circuit will be broken, cutting off the current.

When the PPTC element cools, it returns to its original shape and automatically allows the current to resume flowing through it. Since the device has a self-resetting element, it does not require any external intervention to operate. This makes the RUEF110-AP a reliable, cost-effective and easy to use protection device for a variety of applications.

The RUEF110-AP can be used in applications such as electronic equipment, automotive electronics, power supplies, household appliances, and industrial equipment. It is also an excellent choice for applications that require cost-effective, yet reliable protection from overloads, short circuits, and reverse polarity. Therefore, the RUEF110-AP is a reliable, cost-effective and space-saving solution for protecting your applications from electrical problems.

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