MF-RX012/250U-2

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PTC Resettable Fuses are a convenient and reliable form of overcurrent protection, and the MF-RX012/250U-2 is among the best. Suitable for applications ranging from small computer supplies to instrumentation, this PTC Device can help protect users and their equipment from significant damage.

The MF-RX012/250U-2 is a 12V DC PTC Resettable Fuse with a current rating of 250mA. It is an electronic fuse which uses a Positive Temperature Coefficient (PTC) element to detect and open an internal fuse when the current exceeds a certain amount. The element then needs time to cool before it can be reset. This makes it ideal for applications where regular overcurrent events must be protected against, without having to remove and replace a conventional fuse.

In addition to current overload protection, the MF-RX012/250U-2 provides a number of other features that make it well suited to challenging applications. It has an extremely low resistance value of 0.5 ohm, meaning it does not draw significant amounts of power and does not significantly reduce the efficiency of the power supply. Its response time is fast (<1 second) making it ideal for applications requiring quick action. It also has a wide temperature range (-40°C to +105°C) and a wide voltage range (4.5V DC - 28V DC).

The MF-RX012/250U-2 is a rugged and reliable device offering full protection against over-currents. Its simple, yet effective design makes it easy to use and install, without requiring any additional components. This makes it well suited to a wide range of applications, from consumer electronics to automotive, and its wide voltage range means it can be used in a variety of power systems.

The working principle of the MF-RX012/250U-2 is quite simple. It contains a PTC element which is connected in series with the power supply. When the current exceeds the rated value, heat begins to build up in the PTC element, increasing its resistance. This limits the flow of current through the device, and eventually causes it to open. After cooling, the PTC element can be reset and the device is back to its normal state.

The MF-RX012/250U-2 application field is broad. It is suitable for use in consumer electronics, industrial electrical systems, instrumentation and communication systems, motor drives, and automotive applications. It can be used in power supplies, Uninterruptible Power Supplies (UPS), DC-DC converters, security systems, battery-powered equipment, system controllers, solar panel systems, and more.

In conclusion, the MF-RX012/250U-2 is an excellent choice for over-current protection. It is rugged, reliable, and cost-effective, making it well suited to a variety of applications. Its response time is fast, its temperature range is wide, and its voltage range is broad, ensuring it can be used in a variety of different power systems. It is easy to use and install, requiring no additional components, and its PTC element ensures it has a long service life. All in all, it is an ideal choice for anyone looking for an effective PTC resettable fuse.

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