MF-S150S

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PTC Resettable Fuses, also known as Polymeric Positive Temperature Coefficient (PPTC) fuses, are self-resetting overcurrent protection devices. They feature thermally operated actuators with a temperature that increases with increasing current. When it reaches a predetermined temperature, it unlocks the fuse path allowing current to flow until the operating current is reduced to a predetermined hold current. This self-resetting action helps protect sensitive electronic components from dangerous current and provide reliable service.

MF-S150S is one of the most popular models of the PTC Resettable Fuses family. With a 3V rated voltage, it is well suited for automotive, telecommunication and consumer electronics applications. It offers a current rating of 150 A, and a maximum power rating of 450W. The fuse has a fast response time of less than 300ns and a low power dissipation rating of 50mW. The MF-S150S series features a wide operating temperature range from -55 °C to +125 °C.

The working principle of a PTC Resettable Fuse is simple. It consists of a semi-conductor body with PTC element inside. When the electric current flows through the fuse, the PTC element absorbs heat and resistor increases. When the current reaches the predetermined level, the PTC element will become a fast-acting thermal switch and open the circuit automatically, cutting off the power to the device it’s protecting. To reset the fuse, the current must be returned to the normal state. To guarantee the fuse can be reset, the leniency time should be set, which gives the user time to reset the fuse to the predetermined level.

The MF-S150S PTC Resettable Fuses offers superior performance and excellent radiation protection, making it an ideal choice for high-power applications. It features extremely fast response time and low power dissipation for efficient current protection. The wide operating temperature range allows for precise current protection in extreme environmental conditions. Additionally, the MF-S150S has a wide variety of environmental certifications including UL, CUL, TUV, CTA, VDE, ENEC, RoHS and REACH compliance making it suitable for many different application needs.

In summary, MF-S150S is a reliable, highly efficient PTC Resettable Fuse ideal for protecting sensitive electronic components and providing reliable service. It features fast response time, low power dissipation and a wide operating temperature range. It has achieved several environmental certifications, making it suitable for a wide range of applications.

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