MF-RX160-2

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PTC (positive temperature coefficient) resettable fuses are an integral component of electrical circuits and provide a level of protection for components, users, and surrounding environment. They are designed to protect against short circuits, overloads, and fires caused by overheating, and are quickly becoming an industry standard. The MF-RX160-2 is an advanced resettable fuse that provides a balance of protection, durability, performance and cost-savings.

The MF-RX160-2 is a type of PTC resettable fuse. Such fuses are composed of a positive temperature coefficient (PTC) and an NTC (negative temperature coefficient). This design keeps the device temperature low via a low amount of resistance. This allows for faster reactions to over current situations and allows the device to quickly reset once current is no longer flowing.

In terms of the MF-RX160-2’s application field, its versatility lends itself to multiple applications, including solar energy, automotive, and electronic circuits. In terms of the solar energy sector, it finds application in photovoltaic systems, allowing for both current limitation and short circuit protection in DC load circuits. In the automotive sector, it is suitable for use as a DC/DC converter input, providing the same aforementioned current limitation and short circuit protection as well as further protection against surges. The MF-RX160-2 can also be used in general electronic circuits to again provide current limitation and short circuit protection.

In terms of its working principle, the MF-RX160-2 works by limiting maximum current flow. This is due to the device’s internal structure, as it is constructed from a PTC and an NTC which are thermally linked. When an over current situation arises, the PTC will begin to heat up, causing an increase in resistance and therefore a decrease in current flow. Should the over current situation persist, the NTC will also begin to heat up, causing a further increase in resistance and resulting in a decrease in current flow. Once the device has gone into protection mode, however, it is not only able to reset itself but also reset other over current protection components. It is capable of this thanks to self-sensing technology which allows it to accurately detect current levels and reset the device accordingly. On top of protection functionality, the MF-RX160-2 is also capable of UL recognition and has a number of further distinguishing features to its name.

Overall, the MF-RX160-2 is a versatile PTC resettable fuse. It provides a balance of protection, durability, performance and cost-savings, and is suitable for use in a number of applications. Due to its use of PTC and NTC, it is able to accurately limit maximum current, reset the fuse in an over current situation, and reset other over current protection components where necessary. The device also has UL recognition and a number of distinguishing features.

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