RXEF185

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PTC Resettable Fuses are one of the most significant safety innovations in circuit protection. They are primarily used in the automotive, medical, consumer, industrial and communication sectors. RXEF185 is a type of PTC Resettable Fuse that features a high protection level while taking up a minimal amount of board space. Understanding its application field and working principle is important when considering the use of this innovative component.

RXEF185 Application Field

RXEF185 is mainly applied in applications that require low on-state current. It is ideal for over-voltage and short-circuit protection in electronic circuits, particularly in areas subject to high humidity levels like LCD backlighting, automotive, LED lighting, batteries, power distribution boards, and industrial controls. Its small size is a great advantage in tight-space applications that require a high level of protection.

RXEF185 Working Principle

PTC Resettable Fuses employ a negative temperature coefficient material as their core to provide over-current protection. When current is passed through the fuse, it will begin to heat up due to its low resistance. When the fuse reaches a certain temperature, known as the trip point, a meltable link will break, thereby interrupting the flow of current and protecting the circuit. As the current flow is reduced, the temperature will cool and the link between the 2 poles will restore. This resetting process is known as “self-resetting” and allows the fuse to be used again.

Conclusion

RXEF185 PTC Resettable Fuse is an innovative component used in a variety of applications to protect electronic circuits from current overloads. By properly understanding the applications, and working principles of the fuse, one can ensure that it is the best choice for their circuit protection needs. In areas where high levels of humidity are present, RXEF1815 is highly recommended due to its ability to withstand the extreme conditions and its small size.

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