MFR50SFRF52-4M

Series:	MFR
Packaging:	Tape & Reel (TR)
Part Status:	Active
Resistance:	4 MOhms
Tolerance:	±1%
Power (Watts):	0.5W, 1/2W
Composition:	Metal Film
Features:	--
Temperature Coefficient:	±100ppm/°C
Operating Temperature:	-55°C ~ 155°C
Package / Case:	Axial
Supplier Device Package:	Axial
Size / Dimension:	0.094" Dia x 0.248" L (2.40mm x 6.30mm)
Height - Seated (Max):	--
Number of Terminations:	2

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Through Hole Resistors

Through hole resistors have been at the forefront of electronics design since the late 19th century. With the development of new technologies and materials, through hole resistors have evolved to meet the demands of the modern age, offering unparalleled performance, reliability, and cost effectiveness.One such type of through hole resistor is the MFR50SFRF52-4M, a high voltage, high reliability, low cost, positive temperature coefficient resistor. The MFR50SFRF52-4M is used extensively in a variety of applications, from consumer electronics to industrial storage. Let’s take a closer look at the application fields and working principle of the MFR50SFRF52-4M resistant.

application field

The MFR50SFRF52-4M is typically used in applications that require a high voltage, high reliability, and low cost resistor. It is an ideal choice for high voltage power supplies, motor controllers, power regulators, and other power control applications. It is also used in industrial storage devices, high voltage converters, transformers, and many other electronic components.In addition, the MFR50SFRF52-4M is an ideal choice for LED lighting applications, as it is known for its stable electrical characteristics, resistance to power fluctuations, and thermal robustness. Its low series resistance and low inductance also make it suitable for many switching power supplies, motor drivers, and power converters.

Working Principle

The MFR50SFRF52-4M uses a positive temperature coefficient of resistivity, or PTCR, design. This means that the resistance increases as the temperature of the resistor increases. This design is used because it helps to protect the circuit from damages caused by overcurrent.The MFR50SFRF52-4M consists of a resistor element along with a base and a ceramic rolled-up sleeve. The resistor element is a combination of a conductive film and a conductive contact. The base is used to mount the device onto a printed circuit board. The rolled-up ceramic sleeve is designed to provide an insulated environment for the resistor element, protecting it from external interference.The resistor element is then connected to the base using a high temperature soldering technique, resulting in a reliable connection that offers low contact resistance and a long lifespan. The contact surfaces of the resistor element are gold plated to provide an effective electrical connection.Once the MFR50SFRF52-4M is mounted onto the circuit board, the resistor element is then surrounded by a resistive element. This resistive element is designed to offer high voltage, high power, and high temperature dissipation capabilities.The resistive element is also designed to allow for low power shunting of power signals. This helps to reduce circuit noise and improves the signal to noise ratio of the circuit.

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