MF-RHT100-0

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PTC Resettable Fuses, also known as PPTC Resettable Fuses, are one type of over-current protection device. These fuses provide a self-resetting type of current protection by utilizing a component known as a thermally sensitive Positive Temperature Coefficient (PTC) resistor. Such a resistor is like any other type of resistor but has the added ability of being able to change its resistance with change in temperature.

The MF-RHT100-0 is one of the specialized resettable fuse products. Typical characteristics of the MF-RHT100-0 include a rated voltage of 24V and a current rating of 5A. The operating temperature range for this device is from -40°C up to 125°C. The opening time of the fuse is relatively short. Opening time is typically on the order of milliseconds.

The operation of the MF-RHT100-0 is based upon a reaction to increases in temperature. The current in this fuse is directly proportional to the felt temperature. As the current increases, so does the temperature. This increases the resistance of the PTC resistor and causes the current to be limited, which acts as the fuse feature. The opening time of the fuse is relatively short, under 2 milliseconds in typical operating conditions. When the current is reduced, the temperature drops, and the resistance of the PTC resistor returns to its original low value, providing continuous circuit protection.

The application field of the MF-RHT100-0 is quite wide. The device is widely used in automotive, industrial, medical, consumer and computer applications. More specifically, this device is suitable for use in any application that requires very accurate current sensing and fast response times. Such applications include DC-DC converters, auxiliary power supply, Battery chargers, and home appliances.

In conclusion, the MF-RHT100-0, as a PTC resettable fuse, offers an ideal over-current protection solution for a variety of applications due to its fast response time and accurate current sensing features. It is important to note that proper circuit design should always be used to ensure that the fuse does not experience frequent resetting or respond to false signals. This will ensure the overall reliability and longevity of the fuse.

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