MF-R090-AP-9

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PTC Resettable Fuses -- MF-R090-AP-9 application field and working principle

PTC Resettable Fuses are components that provide circuit protection against over-current. This type of fuse is a self-resetting fuse, which means that it automatically resets when the temperature drops below a certain point, allowing the device to start working again. The MF-R090-AP-9 is a PTC Resettable Fuse with a maximum voltage rating of 24V DC and a maximum current rating of 10A.

Application field

The MF-R090-AP-9 is primarily used in automotive and industrial applications where it is necessary to offer protection against short-circuit and overload conditions. It is often used in power supplies, motor controllers, audio amplifiers, computer peripherals, and other high-power applications.

Working principle

The MF-R090-AP-9 is the most commonly used PTC Resettable Fuse, and functions by using a PTC (positive temperature coefficient) element to control current flow. When an overload is detected, the PTC element will increase its resistance, and the current will drop rapidly. This causes the temperature of the fuse to increase, which in turn increases the resistance even further, resulting in a decrease in current to a level that will not cause further damage to the system. When the temperature drops below a certain point, the PTC element will reset, and the current will be allowed to flow freely again.

Conclusion

The MF-R090-AP-9 is a popular PTC Resettable Fuse for automotive and industrial applications that offers excellent protection against overload and short-circuit conditions, while also providing a self-resetting function. With its maximum voltage rating of 24V DC and maximum current rating of 10A, the MF-R090-AP-9 is suitable for a wide range of applications.

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