YQZ120N1.00 Circuit Protection

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PTC Resettable Fuses are a type of fuse that can close a circuit when there is an overload or short circuit, then automatically reset later, providing more safety and reliability than traditional fuses. YQZ120N1.00 is one of the popular PTC resettable fuses in the market. This article will focus on the application field and working principle of YQZ120N1.00.

The YQZ120N1.00 is a member of the growing family of PTC resettable fuses, which offer superior protection to conventional fuses. It features a high current rating of 120A with a low profile package that’s only 20.3mm long, making it an ideal solution for many applications where size is a factor. Its features are suitable for use in computers, monitors, surface-mounted devices, low-impedance busbar circuits, batteries, power converters, and other electronic equipment.

The YQZ120N1.00 features a unique design that makes it especially suited for applications requiring a high current PTC. It consists of a ceramic core, a PTC element, and a pair of electrodes. The ceramic core acts as an insulator and thermal conductor, while the two electrodes provide an electrical connection to external circuits. The PTC element is the heart of the YQZ120N1.00. It is made of a conductive polymer that has a positive temperature coefficient (PTC), meaning that it increases its resistance when subjected to higher temperatures.

When the current through the YQZ120N1.00 reaches its rated current, the PTC element becomes heated. This causes the resistance to increase, limiting the current. If the current exceeds the rated value, the fuse will open, preventing further damage and protecting the attached circuits. Once the current has dropped below the rated value, the PTC element will cool down and the resistance will decrease, allowing the circuit to reset.

The YQZ120N1.00 offers many advantages compared to traditional fuses. Firstly, it can automatically reset after a short circuit or overload, providing greater protection for connected equipment. Secondly, the YQZ120N1.00 is more reliable than regular fuses because PTC elements are less affected by noise, vibration, and changes in ambient temperature. Thirdly, it is much more space-saving than traditional fuses. Due to the low profile design, multiple PTC resettable fuses can be used in the same circuit, allowing greater flexibility in design. Last but not least, the YQZ120N1.00 has a much higher current rating than traditional fuses, making it suitable for high-power applications.

To summarize, the YQZ120N1.00 is an effective PTC resettable fuse for a variety of applications. Its small size and high current rating make it suitable for use in computers, monitors, and other electronic equipment. It is also reliable and space-saving, making it a great choice for power converters, low-impedance busbar circuits, and other high-power applications. The YQZ120N1.00 also features a unique design, featuring a ceramic core, PTC element, and two electrodes, making it an excellent choice for applications requiring a high current PTC.

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