MFR25SFBF52-300R

Series:	MFR
Packaging:	Bulk
Part Status:	Active
Resistance:	300 Ohms
Tolerance:	±1%
Power (Watts):	0.25W, 1/4W
Composition:	Metal Film
Features:	--
Temperature Coefficient:	±100ppm/°C
Operating Temperature:	-55°C ~ 155°C
Package / Case:	Axial
Supplier Device Package:	Axial
Size / Dimension:	0.075" Dia x 0.134" L (1.90mm x 3.40mm)
Height - Seated (Max):	--
Number of Terminations:	2

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Through Hole Resistors: MFR25SFBF52-300R Application Field and Working Principle

Through hole resistors are the most popular type of resistors, used in traditional circuitry and power electronics. They are a discrete component, meaning that they can be individually placed and soldered onto the circuit board manually. The resistor is usually featured on the PCB itself as a single isolated component. The MFR25SFBF52-300R is a through hole resistor used for device applications in a wide variety of industries requiring strong, long-lasting electrical components. The MFR25SFBF52-300R is a power metal-film resistor that is designed to help dissipate high currents and power. It is a 25 watt, 300 ohm, through-hole resistor with an 0.5 ohm maximum tolerance. This resistor has high resistance and low power dissipation, making it ideal for use in applications associated with various automotive, industrial and consumer electronics.The MFR25SFBF52-300R uses a “space saving” design, with the body of the device only being 39x15mm so that it can easily fit in even the smallest of PCB designs. The device also features a top-plated logo for easy identification and a high-temperature glass solder coating to prevent corrosion and oxidation.This thermal-resistant resistor is also rated from -55°C to 150°C, making it perfect for a wide range of device applications. Additionally, its Maximum Junction Temperature (MTJ) rating of 155°C ensures that overheating does not occur even during high-power dissipation situations.When it comes to the working principle behind the MFR25SFBF52-300R, it has two main components which are a thick metal film for insulation and a wire coil to carry the electricity. When current passes through the wire coil, it creates a magnetic field. This field induces a voltage in the surrounding insulation, which in turn creates a resistance to the current. The resulting current can be measured using an ohm meter, and the resistance of the resistor can be adjusted by changing the position of the coil in the insulation.The MFR25SFBF52-300R is often used in the production of portable electronic devices, such as laptops, smartphones and tablets, as they require a small mounted resistor capable of dissipating large amounts of heat. This resistor is also commonly used in LED displays, automotive lighting and other applications requiring power resistors.In conclusion, the MFR25SFBF52-300R is a highly efficient and reliable through hole resistor designed for applications where size and current leakage are important, such as automotive and portables electronic devices. This resistor offers many advantages, such as its low profile design, its high temperature rating and its ability to dissipate high currents. Furthermore, it utilizes a wire coil and thick insulation for resistance control and effective heat dissipation.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description