Series:	MFR
Packaging:	Tape & Reel (TR)
Part Status:	Active
Resistance:	25.2 kOhms
Tolerance:	±1%
Power (Watts):	1W
Composition:	Metal Film
Features:	--
Temperature Coefficient:	±50ppm/°C
Operating Temperature:	-55°C ~ 155°C
Package / Case:	Axial
Supplier Device Package:	Axial
Size / Dimension:	0.130" Dia x 0.354" L (3.30mm x 9.00mm)
Height - Seated (Max):	--
Number of Terminations:	2

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Through Hole Resistors and the MFR1WSFRE52-25K2

Resistors are electronic components that are fundamental elements in any circuit, and one type of resistor is the through-hole resistor. Although the development of surface mount resistor technologies have had an influence on the type and size of the resistors being used in electrical circuits, there are still many applications in which through-hole resistors are the component of choice. A prime example would be the MFR1WSFRE52-25K2 which offers an exceptional performance for surface mount applications.The MFR1WSFRE52-25K2 application, colloquially known as the “suicide resistor”, is an electrical component designed for use as an air core zero-ohm link―a device that helps to distribute and control current flow in a circuit board. When used, the MFR1WSFRE52-25K2 heats up to open an electrical connection, allowing for uninterrupted current flow; thus, manually and mechanically disengaging the resistor from the circuit. Additionally, the MFR1WSFRE52-25K2\'s performance is highly dependable and, as such, is well-suited for automotive, aerospace, medical, and military applications. The MFR1WSFRE52-25K2 works its function by progressing from a closed circuit to an open circuit as heat is generated. When the current reaches a certain level, the resistance of the resistor will start to drop. As the temperature rises further, the resistance will drop even more, eventually reaching about 0 Ω (ohm). At this point, the open circuit is created, and the power is now routed around the resistor instead of through it. Generally speaking, the MFR1WSFRE52-25K2 results in a power loss, as it reduces the flow of energy. This energy loss is created by the voltage and current flowing through the resistor. As the voltage and current flowing through the resistor increase, the power loss that is created by the resistor also increases. This means that as the amount of current and/or voltage passing through a resistor increases, the power loss that is created also increases. The higher the power loss, the more heat is generated by the resistor. In addition to being used as a power control device, the MFR1WSFRE52-25K2 can also be used as a decoupling capacitor, helping to reduce any possible electrical noise on the circuit. In this capacity, the the resistor will filter out any unwanted electromagnetic interference.In conclusion, the MFR1WSFRE52-25K2 is an effective zero-ohm link, lending its performance to highly specific automotive, aerospace, medical, and military applications. Its functioning is dependable, and its capacity for separating power paths from its service as a decoupling capacitor ensures its status as a necessary element in any electrical circuit.

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Part Number	Manufacturer	Price	Quantity	Description