B59085R0220B010

PTC resettable fuses are an important component used in electronic circuits. They are used to help prevent short circuits, overcurrents, and other circuit faults from happening. The B59085R0220B010 is a particularly useful type of fuse in this market. In this article, the application field and working principle of the B59085R0220B010 will be discussed.

Application Field

The B59085R0220B010 is designed for medium-voltage industrial circuits. The fuse is capable of handling power applications up to 250V AC, making it suitable for circuit protection and overload protection in high-power industrial systems.

The fuse is also suitable for applications that require resetting of the circuit, such as emergency lighting and low-voltage systems. The resettable element of the fuse allows the circuit to be reset without having to substitute the device, thus reducing downtime and maintenance costs.

Working Principle

The operation of the B59085R0220B010 is based on the principle of a thermistor element. The fuse is made of a conductive material, such as a metal oxide, which is surrounded by an insulating material, such as a plastic housing. When an overload current is applied, the metal oxide material heats up and increases its resistance.

Once the temperature of the metal oxide material reaches a certain threshold, the metal oxide decides to “trip”, thus decreasing its resistance and allowing the current to flow freely. After the hot spot cools down, the metal oxide returns to its original state and the circuit can be reset. This process repeats itself until the over-current is removed.

In summary, the B59085R0220B010 is a type of PTC resettable fuse used in industrial circuits. It is designed to protect circuit from overloads and is capable of resetting itself without having to substitute the device. The fuse is based on the principle of a thermistor element, and it works by increasing its resistance when an overload is detected, which causes the fuse to “trip” and allow the circuit to reset.