MF-MSMD125-2 Circuit Protection

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

PTC Resettable Fuses are common in electronic circuitry and are primarily used in order to protect devices from damage caused by overload of current. The MF-MSMD125-2 is an example of a PTC Resettable Fuse, and its application field and working principle can be described below.

Application Field

The MF-MSMD125-2 is designed to protect electronic circuits from overcurrent in a wide range of applications. It is particularly suited for devices and circuits that require more than one resetting in order to atone for overloads. Examples of such equipments are AC-DC adapters, battery protection circuits, USB charging systems, and laptop chargers. MF-MSMD125-2 is also suitable for use in safety and backup systems such as fire alarm systems, home appliance protection, UPS protection, and security system.

Working Principle

The working principle of MF-MSMD125-2 is based on the self-resetting of a polymeric PTC material. It uses a thermally sensitive polymer material as its thermoprotect element and works by cutting off the current supply when it detects an overcurrent situation. When the current is cut off, the polymer material cools down and the conduction resumes. The whole process takes a few milliseconds, making it the ideal option for the protection of sensitive devices against short-term overcurrents.

It is important to note that the MF-MSMD125-2 isn\'t intended to replace a traditional fuse for complete overcurrent protection. It is instead used to provide protection against unexpected short-term overcurrents, such as those that come from start-up surges, or when a device is suddenly under heavy load. The MF-MSMD125-2 also acts as a circuit breaker, preventing any further damage to the circuit in the event of a sustained overcurrent.

MF-MSMD125-2 is also a cost-effective option for applications that require repeatable use. It eliminates the need for replacing fuses in the event of an overload, can be reused many times, and eliminates the costs associated with replacing traditional fuses. All of these features make it an attractive option for manufacturers who are looking to reduce costs and improve the safety of their products.

In conclusion, the MF-MSMD125-2 is a polymeric PTC Resettable Fuse which is suited for use in many applications. It works by cutting off the current in the event of an overcurrent, and then resets when the situation has been rectified. It is cost-effective and ideal for use in applications that require repeatable protection from short-term overcurrents. It is also an ideal option for manufacturers who are looking to reduce costs and improve the safety of their products.

The specific data is subject to PDF, and the above content is for reference