MF-SVS175N-0

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PTC resettable fuses, also known as polyfuses, are an important type of self-resettable thermal-link device. They are used for a variety of applications, such as over-current protection and inrush current limiting in high-power electronics applications. The MF-SVS175N-0 is a PTC resettable fuse specifically designed for applications where Power-over-Ethernet (PoE) and Ethernet communications are used. It is a single-piece device incorporating a PTC resistor and thermal fuse, and can be used in high power Ethernet applications where a PoE Injector is used to deliver power over Ethernet (PoE) cables.

The primary function of the MF-SVS175N-0 is to provide over-current protection and inrush current limiting to protect both the PoE equipment and PoE cabling. The device eliminates the need for bulky, separate inrush current limiting capacitors that are usually required in PoE systems. It also helps reduce the required size of the power supply that is used for providing power to the PoE equipment.

The MF-SVS175N-0 PTC resettable fuse has a wide operating temperature range, making it suitable for use in a variety of applications. It has a nominal current rating of 175A and a maximum voltage rating of 125V. The device features a reset operation window from 30A to 175A and can be easily integrated into PoE systems.

The working principle of the MF-SVS175N-0 is that it acts as a temperature-dependent switch, with the temperature being determined by the amount of current flowing through the device. When the current through the device exceeds the specified current limit, the PTC element heats up and causes the thermal fused element to open, interrupting the current and effectively limiting the current to the specified level. When the current is reduced to a safe level, the thermal fuse part of the device cools down and reset, allowing the device to resume operation. This self-resetting feature offers added protection for the device and the equipment connected to it.

In summary, the MF-SVS175N-0 PTC resettable fuse is a device specifically designed for applications requiring PoE and Ethernet communication. It offers a wide operating temperature range and a high nominal current rating of 175A, allowing it to be integrated into PoE systems with ease. The device\'s self-resetting feature provides extra protection for both the device and the equipment attached to it. As such, the MF-SVS175N-0 PTC resettable fuse is an ideal solution for high power Ethernet applications requiring over-current protection and inrush current limiting.

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