MF-RX250/72-0

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PTC Resettable Fuses are an electronic circuit breaker that eliminates the need to replace fuses after a circuit overload. The MF-RX250/72-0 is a type of resettable fuse, which helps protect electronics from damage caused by over-currents or short circuits. It is commonly used in the protection of consumer electronics such as phones, tablets, and computers. The MF-RX250/72-0 resettable fuse is a fusible resistance device, which features a metal layer compressed between two layers of insulating material. When a current overload occurs, the metal layer heats up and melts, which opens the circuit and prevents further damage. The device automatically cools down and self-resets when the power is shut off, allowing the circuit to be used once again.

The MF-RX250/72-0 resettable fuse has a wide range of applications, including medical, electronic, automotive, and telecommunications equipment. It is used to protect sensitive electronic equipment from power surges or voltage spikes, as well as to protect delicate circuits from unexpected load increases. It is also used to protect consumer electrical products from short circuits, high current overloads, or overvoltage conditions. The resettable fuse is particularly suitable for applications where under-voltage and thermal trip conditions are expected, and it provides superior protection against damage caused by short circuits.

In addition to its primary function of circuit breaker protection, the MF-RX250/72-0 resettable fuse also offers a comprehensive range of features and benefits, including a low hold current of 0.02A, a hold time of 500 ms, a response time of 200 µs, and an operating temperature range of -55°C to +125°C. It has an ultra-small package size of 1.6 mm x 2.1 mm, and a wide operating voltage range of 4.5 V to 32 V. The device is also RoHS compliant and has a metal sheath for improved corrosion protection.

The working principle of the MF-RX250/72-0 resettable fuse is fairly simple. When the current exceeds the trip current, the fuse’s metal layer heats up and melts. This interrupts the flow of electricity and thus prevents further damage from occurring. This self-resetting ability means that the circuit remains open until power is shut off and the fuse cools down. Once the power is restored, the device automatically resets and the circuit is allowed to return to its normal operating state.

The advantages of the MF-RX250/72-0 resettable fuse include its low cost, small size, and wide operating voltage range. It is also easy to install and use, and is a reliable and cost-effective protection solution for a variety of electronic equipment. Furthermore, its robust design and resistance to vibration and temperature extremes make it an attractive protection solution for a wide range of applications.

In summary, the MF-RX250/72-0 resettable fuse is an excellent solution for providing circuit breaker protection in a variety of consumer products. It has an ultra-small package size, a wide operating voltage range, and reliable performance. In addition, its robust design, wide range of features and benefits, and affordable price make it an attractive protection solution for many types of applications.

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