MFR-25FTF52-27R4

Through Hole Resistors are a key component in a range of electronic circuitries and are expected to feature in many designs of the future. This article will focus on the MFR-25FTF52-27R4 Through Hole Resistor, in particular its application field and working principle.

Overview

The MFR-25FTF52-27R4 (often shortened to FF52) resistor, is a through hole resistor with superior temperature coefficient, stability and power handling ability compared to its surface mount counterparts. It is designed for use in military or industrial environments where precision is a necessity and heat is likely to be uncontrollable. It has a power dissipation of 2.5 Watts and a voltage rating of 27 Volts. Its range of operating temperatures is -55 to +125 C.

Application Field

The FF52 through hole resistor is most commonly used in power supply circuits, in particular the transient suppressors in power input circuits, where reliable and firm regulation is required. Additionally, it can also be used as a current sensing device and can be depleted in high temperature applications. Furthermore, these resistors can be used in motor controllers, their position feedback loops and the current limit protection loops. They are also used as damping elements in heated fixtures and chemical ovens.

Working Principle

The FF52 Through Hole Resistor works on a fairly simple principle. A resistance value is produced due to the material used in the resistor, and this resistance is inversely proportional to the current flow that is passed through the resistor. So, as the current is increased, the resistance is decreased. This resistance is also inversely proportional to the temperature – when temperature is increased, resistance decreases. This allows for reliable and consistent resistance values across a wide range of temperatures and current levels.

Conclusion

The MFR-25FTF52-27R4 Through Hole Resistor is a reliable and robust component, which is a great fit for precision and high power applications. With its excellent temperature coefficient, stability and power handling ability, the FF52 resistor is well suited for use in a variety of power supplies, motor controllers and other applications.