CMF55249R00FERB70

Series:	CMF
Packaging:	Tape & Reel (TR)
Part Status:	Active
Resistance:	249 Ohms
Tolerance:	±1%
Power (Watts):	0.5W, 1/2W
Composition:	Metal Film
Features:	Flame Retardant Coating, Moisture Resistant, Safety
Temperature Coefficient:	±25ppm/°C
Operating Temperature:	-55°C ~ 175°C
Package / Case:	Axial
Supplier Device Package:	Axial
Size / Dimension:	0.090" Dia x 0.240" L (2.29mm x 6.10mm)
Height - Seated (Max):	--
Number of Terminations:	2
Failure Rate:	--

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Introduction of Through Hole Resistors

Through-hole resistors are electronic components particularly designed to constrain the flow of electrical current in an electric circuit. Generally, through-hole resistors are mounted or inserted onto a PCB, and they often come in a variety of sizes and shapes with their purpose in mind.

Types of Through Hole Resistors

The majority of through-hole resistors available have four major types: Metal Film, Carbon Film, Foil (Wet) and Wire Wound. The metal film type of through-hole resistor is made up of a metal film deposited on a ceramic rod. It has a high accuracy and is less affected by heat.The carbon film type of through-hole resistor uses a thin carbon film deposited on a ceramic or glass rod. A low tolerance and excellent temperature stability are common characteristics of carbon film resistors.The foil (wet) type of through-hole resistor is composed of a metal foil deposited on a substrate or a ceramic rod. It has a wide range of parameters including low tolerances, high stability, and low temperature coefficients.The wire-wound type of through-hole resistor is made up of a thread of metal, typically nickel, wound in a helix around a core form. It has an advantage of higher power ratings and higher tolerance levels than metal film resistors, but is more expensive.

CMF55249R00FERB70 – Application Field and Working Principle

CMF 55249R00FERB70 is a through-hole resistor made up of a metal film deposited on a ceramic rod. The maximum power dissipation of this component is 250mW and it has a resistance value of 0.125Ω. It operates at temperatures ranging from -55°C to +125°C and has a tolerance of ±5%. The component has the following characteristics:

• Low noise level
• High stability
• Excellent temperature coefficient
• High resistance accuracy
• Excellent surge capability

This resistor is commonly used in the automotive, medical, and industrial electronics industries. It can be used in applications such as ignition control, motor drivers, and speed controls.When it comes to its working principle, the CMF55249R00FERB70 works by creating an electrical resistance to current flows in a circuit. The resistance is created by the structure of the metal film material that it is made out of, as well as its physical dimensions, such as its length and width. The amount of resistance that the component creates is based on the amount of electrons that are able to flow through it, thus influencing the overall current in the circuit.

Conclusion

Through-hole resistors are important electronic components used in a wide variety of applications. The CMF55249R00FERB70 is a through-hole resistor made up of a metal film which can be used in automotive, medical, and industrial electronics markets. It has low noise, high stability, excellent temperature coefficient, high resistance accuracy, and excellent surge capability. It works by creating an electrical resistance to current when electrons flow through its material.

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