MFR-25FTF52-140R

Through Hole Resistors, such as MFR-25FTF52-140R, are widely used as part of modern electrical circuits. This popular resistor can operate at high power levels and is often used for adding accurate values of resistance to a circuit. While resistors are normally considered passive components, the MFR-25FTF52-140R offers an additional advantage - a built in thermal resistor to protect the circuit from thermal overload.

The MFR-25FTF52-140R through hole resistor is designed to handle high operating and overload temperatures up to 140℃. The part itself consists of two distinct parts: a fixed resistor and a thermal resistor. The fixed portion of the resistor is constructed as a wirewound element, winding a high resistance wire around an insulating body. The winding must be heated or magnified to a certain extent to achieve the desired resistance. The temperature of the winding affects the resistance of the resistor, hence the need for the built-in thermal resistor.

The thermal resistor is designed to sense internal temperatures of the resistor and limit or control the output current accordingly. When the pre-determined temperature is reached, the thermal resistor is designed to limit the current until the condition is resolved. This is beneficial as it helps to prevent overheating of the resistor and ensuing damage or destruction of the circuit.

The MFR-25FTF52-140R is typically used in motor controllers, high power supplies and other critical components. Additionally, it can also be used in industrial applications with high level of ambient temperature or in demanding thermal environments. It is capable of delivering increased performance and long term reliability, which makes it highly suitable for industrial and other demanding applications.

The MFR-25FTF52-140R is a valuable component to have in an electrical system as it helps to protect the circuit from damage due to high temperatures or overload. Its reliability and cost-effective price makes it ideal for high power applications, while its added feature of being able to sense the internal temperature of the resistor to protect from thermal overload further increases its desirability.