MF-MSMF200-2 Circuit Protection

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PTC resettable fuses are an integral component in a wide range of circuits and electronic devices. They provide protection to the circuit components from over-current and short circuit failures by tripping at a set current, allowing the user to reset the fuse and safely re-start the circuit once the fault has been rectified. The MF-MSMF200-2 is a particular type of PTC resettable fuse, widely used in both commercial and consumer electronics. In this article, we will discuss the application field and working principle of the MF-MSMF200-2.

The MF-MSMF200-2 is a bidirectional PTC resettable fuse which can be applied to a wide variety of electronic devices and circuits. It is suitable for applications in domestic appliances, power tools, access control systems, security systems and office equipment. It has a rated current of 20A up to 200V, and a temperature range of - 55 ° C to + 105 ° C. The MF-MSMF200-2 is designed to provide protection from over-current and short circuit failures. It is self-healing and can reset itself after being tripped, allowing the circuit to continue operation in a safe manner.

The working principle of the MF-MSMF200-2 is based on the same resistive heating mechanism as other PTC devices. When normal current is passed through the fuse, its Temperature Coefficient of Resistance (TCR) is low, so the resistance of the device is a low ohmic value. However, when a higher current is applied to the fuse, its TCR increases, causing the resistance to rise. This increase in resistance heats up the device, causing it to trip and blocking the current flow from the circuit. Once the fault is rectified and the current flow is restored to its normal value, the MF-MSMF200-2 resets itself, allowing the device to operate safely again.

The MF-MSMF200-2 provides many advantages to the user, such as low cost, easy installation, the ability to reset itself and protection from over-current and short circuit failures. It is a robust and reliable device, designed to last for many years in a wide range of environments and application conditions. With its versatile range of features, the MF-MSMF200-2 is an ideal solution for the protection of electronic devices and circuits.

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