MF72-001.5D15

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Inrush current limiters (ICLs) are an important component of modern electronics. They provide a cost-effective way of protecting circuits from over-currents, ensuring safe operation of electronic systems.  The MF72-001.5D15 is a type of ICL and is widely used in various applications. In this article, we will explore the application field and working principle of the MF72-001.5D15.

Applications

The main application of the MF72-001.5D15 is in power supplies and other applications where high inrush current protection is required. This device is designed to limit the inrush current, which is the peak current that is drawn when a power supply is turned on. It does this by sensing the current in the power supply circuit, and then activating a series of varistors that absorb the excessive current before it can cause damage. 

In addition to power supplies, the MF72-001.5D15 can also be used in other electronic circuits, such as motor drivers, surge protectors, and voltage regulators. Due to its compact size and high current rating, the MF72-001.5D15 is a suitable choice for many designs that require robust inrush current protection.

Working Principle

The MF72-001.5D15 is a passive ICL, meaning that it does not require any external power to function. It works by sensing the instantaneous current in the power supply circuit, and then responding to high inrush currents by activating an array of metal-oxide varistors (MOVs). When the MOVs are triggered, they absorb the excessive current before it can cause any damage to the system.

The MF72-001.5D15 also contains a series of thermal elements, which are responsible for further limiting the inrush current. The thermal elements are designed to activate in order to reduce the current flow to a safe level when the MOVs reach a certain temperature. This ensures that the circuit remains protected even during prolonged periods of high inrush current.

The MF72-001.5D15 also has a built-in circuitry that eliminates false triggering of MOVs, which helps to improve the reliability of the device. Additionally, the unit is resistant to premature thermal runaway. This means that it will not overheat even under heavy loads, thus ensuring long-term reliability.

Overall, the MF72-001.5D15 is an excellent choice for applications where reliable inrush current protection is required. Its robust design and advanced features make it reliable and cost-effective solution for a variety of different applications.

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