MFR-25FBF52-2M15

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Through Hole Resistors refer to resistors with two long, parallel leads that pass through and extend from the base. This type of resistor is typically identified by its power rating, resistor material, and resistance value in Ohms. One example of a Through Hole Resistor is the MFR-25FBF52-2M15, a 0.5 W resistor with 25Ω and ±1% tolerance. It is suitable for applications that require higher pulse or surge-like current. Let us now look at the specific application field and working principle of this resistor.

Application Field

MFR-25FBF52-2M15 can be used in various industries, such as telecommunications, automotive, and consumer electronics. The product is usually used in high-frequency circuits, circuit boards, and integrated circuits. Some common applications include DC/DC converters, camera protection circuits, and SMPS circuits.

Working Principle

MFR-25FBF52-2M15 is a metal film resistor. The resistor contains a nickel-chromium or nickel-iron alloy core that is insulated and wrapped in a protective shield. The core is wound and it contains the resistor’s leads. The resistor then undergoes a deposition process in which a very thin (less than 5µm) layer of metal is deposited over the core and the end leads are soldered in place. This metal layer is either printed or etched onto the core and serves as the resistor element.

When voltage is applied to the resistor, the current flows through the metal layer and creates an electrical field that opposes the flow of current. The magnitude of the current is determined by the size and material of the core, and the thickness of the metal deposit. This opposition to the flow of current is illustrated by Ohm’s law, which states that for every unit of electrical resistance, the magnitude of the current equals the voltage divided by the resistance. In this way, the MFR-25FBF52-2M15’s resistance value of 25Ω determines the magnitude of the current that flows through it.

Conclusion

The MFR-25FBF52-2M15 through-hole metal film resistor is a reliable and versatile resistor that can be used in a variety of applications, ranging from telecommunications and automotive to consumer electronics. The working principle is simple; the metal layer is deposited over the core and the magnitude of the current is determined by the size and material of the core, as well as the thickness of the metal deposit. This device is specifically available with a resistance value of 25Ω and ±1% tolerance and a power rating of 0.5W.

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