12VL170U

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PTC Resettable Fuses are commonly used in a variety of industrial and commercial applications, as they are a reliable and cost-effective way to protect electronic equipment from overcurrents, overvoltages, and other sources of voltage and current fluctuations. The 12VL170U is one such device that has found wide-spread use in a range of applications. In this article, we will discuss the application field and working principle of the 12VL170U.

Application Field of 12VL170U

The 12VL170U is a PTC Resettable Fuse designed specifically for low voltage applications. It is a low voltage version of the 15VL170U, with a maximum load current rating of 1.7A. This makes it ideal for use in low-voltage DC applications, such as solar energy systems, mobile phones, laptops, connector harnesses, and consumer electronic products.

In addition, the 12VL170U is compatible with different types of circuits, including AC/DC power supplies and DC/DC converters. It can be used to protect sensitive circuits from overcurrents, overvoltages, and spikes. It also offers reverse current protection, which helps to protect electronic equipment from reverse voltages. The 12VL170U can also be used to protect serial and data communication lines, allowing for reliable data communication.

Working Principle of 12VL170U

The 12VL170U works by using a positive temperature coefficient (PTC) device. This device has a property in which its resistance increases rapidly as the temperature rises above its current carrying limit. This property is utilized in the 12VL170U to effectively protect sensitive circuits from overvoltages and overcurrents. When the current flowing through the device exceeds the maximum rating of the device, the PTC device activates, causing the resistance to increase rapidly. This sudden increase in resistance limits the current flow, protecting the device and the circuit from any further damage.

Once the current returns to normal, the PTC resets itself and the device is ready for the next cycle. The 12VL170U is designed to be self-resetting, meaning that it will reset itself without any user intervention. This makes it an ideal choice for applications where it is difficult or impractical to reset a fuse manually.

Conclusion

The 12VL170U is a reliable PTC Resettable Fuse designed for low voltage applications. It is compatible with a wide variety of circuits, including AC/DC power supplies and DC/DC converters, and offers overcurrent, overvoltage, and reverse current protection. In addition, its self-resetting feature makes it a great choice for applications where manual resetting would be difficult or impractical. The 12VL170U is a reliable and cost-effective choice for low voltage applications.

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