20LR730U

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PTC Resettable Fuses are versatile and efficient products which have various practical applications. The 20LR730U is a commonly used product in this category, and is widely used in a wide range of industrial applications. This article will explore the application field and working principles of the 20LR730U.

Overview of 20LR730U

The 20LR730U is a PTC Resettable Fuse produced by NCP. It is a fusible device which uses a positive temperature coefficient (PTC) element to break the current path when it reaches a predetermined temperature. This allows it to protect electrical systems from overload and safely interrupt large currents. Its size is just 7.3mm x 5.0mm x 1.7mm, making it small enough to be used in a variety of applications.

This particular product has an amperage rating of 20 A, a voltage rating of 32 V, and a resistance of 0.21 Ω. Its dimensions allow it to be used in virtually any electrical system, and its performance characteristics make it effective at providing overload protection. The 20LR730U is also UL and CSA approved, and has a prolonged life expectancy.

Application Fields of 20LR730U

The 20LR730U can be used in a variety of different applications, including power tools, office machines, computers, telecommunication systems, medical equipment, industrial equipment, and more. It is versatile enough to work with both AC and DC circuits, and its small size makes it suitable for use in small spaces.

The 20LR730U is commonly used in power supplies, motors, and circuit boards in consumer electronics, industrial machinery, and other electrical systems. It is also frequently used to provide overcurrent and overvoltage protection in electric vehicles and other industrial applications.

Working Principle of 20LR730U

The 20LR730U utilizes a special type of thermally sensitive component called a Positive Temperature Coefficient (PTC) element. This type of component has a unique attribute that makes it very useful for overcurrent protection: as it heats up, it increases in resistance. The 20LR730U works by using the PTC element to measure the temperature of the current flowing through it. When the current gets too high, the temperature of the PTC element rises, causing it to increase in resistance. This causes the device to break the current path, protecting the system from overload.

In order to reset the fuse, the current has to be dropped to a safe level. This allows the PTC element to cool down, reducing its resistance. Once the resistance is low enough, the fuse can be reset and the circuit will operate normally again.

Conclusion

The 20LR730U is a versatile and efficient PTC Resettable Fuse which has a wide range of applications. It is small enough to use in a variety of spaces, and its amperage rating, voltage rating, and resistance make it highly effective at protecting electrical systems. The 20LR730U works by using a Positive Temperature Coefficient (PTC) element to detect excessive current and break the current path. It can then be reset once the current is dropped to a safe level.

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