RXEF017-0.142

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PTC (Positive Temperature Coefficient) resettable fuses have recently become essential components in a variety of applications and products. Their design is particularly suitable for high-current applications and provides a convenient and reliable solution to help protect against overcurrent or overvoltage situations. This article is about RXEF017-0.142, a PTC resettable fuse. It will discuss its applications and working principle, and help readers to understand why this kind of PTC resettable fuses are more reliable and durable.

RXEF017-0.142 is a bidirectional resettable fuse, rated 17A at 25 degrees Celsius. It features high current capability, low internal resistance, and fast response time. This makes it suitable for wide range of applications including automotive, telecom, consumer electronics, industrial, energy and medical. It also has low stand-by power due to its low current leakage, making it an ideal used for protecting battery powered products.

The working principle behind RXEF017-0.142 is quite simple. As the current passing through the fuse’s terminals increases, the internal temperature of the fuse increases as well. As the temperature rises, the resistance of the fuse becomes greater until the current is completely cut off. When the current stops, the temperature of the fuse slowly returns back to normal and the fuse resumes its lower resistance state. This process can be repeated multiple times, giving the PTC resettable fuse much greater durability than a standard fuse.

RXEF017-0.142’s overcurrent protection works by raising the resistance of the fuse. When the current through the fuse reaches a certain level, the internal temperature of the fuse rises. This increased temperature results in a risible resistance. The resistance increases until the current is completely blocked, and then returns to its normal state once the current is cut off. This process can be repeated multiple times without having to replace the fuse.

RXEF017-0.142’s overvoltage protection is achieved by a different mechanism. As the voltage across the PTC resettable fuse’s terminals increases, the PTC’s internal temperature also increases. This increase in the temperature results in a larger ignition voltage, and at a certain point the fuse will ignite to open the circuit. When this happens, the voltage across the terminals will return to normal and the PTC resettable fuse will reset itself.

RXEF017-0.142 is an excellent choice for high current applications. Its internal temperature-based design provides both overcurrent and overvoltage protection, and can be reset multiple times without having to replace the fuse. This makes it more reliable and durable than a standard fuse, and is ideal for automotive, telecom, consumer electronics, industrial, energy and medical applications.

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