LVR025S-2

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PTC Resettable Fuses, also known as polyfuses, self-recovering fuses, or current-limiting fuses, are becoming increasingly popular amongst electrical and electronics application fields, due to their unique feature that allows them to reset themselves after power interruption. The LVR025S-2 is an example of such a resettable fuse, and has proven useful in many electrical applications.

Application Field

The LVR025S-2 has a variety of applications due to its ability to reset itself after a power interruption. It is typically used in low voltage DC applications such as battery systems, where it is effective in protecting the system from over-current situations. It is also often used in LED lighting systems due to its ability to limit the LED current to a safe level, reducing the overload dangers that are common in LED applications.Additionally, PTC resettable fuses are widely used in consumer electronic applications such as TVs, monitors, printers, and other desktop equipment. They are also useful in cell phone and laptop charger applications, PLC/Power systems, and even motor control applications. Overall, the flexibility and safety benefits the LVR025S-2 offers make it a very popular choice for both commercial and consumer applications.

Working Principle

The LVR025S-2 is special because it features a special type of self-resetting fuse. This type of fuse is based on the thermistor principle. In its normal state, the circuit is stable and the fuse remains in its "on" position. Then, when an over-current situation is detected, the thermistor will heat up, causing the resistance of the fuse to increase and break the circuit. This breaks the circuit, preventing electrical damage and reducing the risk of fire.Once the overload or short circuit situation is removed, the thermistor cools and the resistance of the fuse returns to normal. This resetting of the fuse allows the system to be restarted, providing additional safety and reliability. The LVR025S-2 is designed to self-reset after a single over-current situation has been identified, while other thermostats can self-reset after multiple occurrences.

Conclusion

The LVR025S-2 PTC Resettable Fuse is an effective solution for many electrical and electronics applications due to its self-resetting feature. It is a widely used in various consumer electronics such as TVs, monitors, printers, and other desktop equipment, as well as being employed in LED lighting, battery systems, motor control applications and other low voltage DC applications. Its self-resetting feature makes it ideal for protecting systems from potentially dangerous over-current conditions, ensuring safety and reliability in an ever-changing technological environment.

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