CMF55121R00BHEB

Series:	CMF
Packaging:	Tape & Reel (TR)
Part Status:	Active
Resistance:	121 Ohms
Tolerance:	±0.1%
Power (Watts):	0.5W, 1/2W
Composition:	Metal Film
Features:	Flame Retardant Coating, Moisture Resistant, Safety
Temperature Coefficient:	±50ppm/°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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Through Hole Resistors – CMF55121R00BHEB Application Field and Working Principle

Through hole resistors are passive components used in electronic circuit designs to control electrical current flow, maintain voltage or divide voltage. Through hole resistors come in two varieties, discrete and integrated versions. Due to their various shapes, colors, and sizes, through hole resistors are easy to identify in any circuit board designs.

CMF55121R00BHEB

The CMF55121R00BHEB through hole resistor is part of a larger family of resistors manufactured by Vishay. It is a Power Strap 3W resistor with a resistance of 121 ohms. It has an absolute tolerance of ± 5% and an operating temperature of the body from -55 ˚C to 150 ˚C.The CMF55121R00BHEB through hole resistor consists of a cylindrical body with two leads that extend to the outside of the body. The resistor is constructed from ceramic, which prevents it from dissipating power easily and helps it to resist voltage and current fluctuations. It is also coated with a flame-retardant material, making it compliant with multiple safety standards.

Application Field

The CMF55121R00BHEB through hole resistor has a wide range of usage, from filtering signals and dampening EMI, to balancing power. Resistors used for filtering signals often require a high capacitance value, and the ceramic construction of the CMF55121R00BHEB makes it ideal for this purpose. High power applications, such as power amplifiers and servo motors, also benefit from the construction of the CMF55121R00BHEB through hole resistor. The 3W capacity of the resistor is capable of handling high power without deteriorating or increasing in resistance, and the flame-retardant coating makes it ideal for systems where safety is a priority.

Working Principle

The CMF55121R00BHEB through hole resistor works on the principal of Ohm’s Law, which states that current (I) is equal to the voltage (V) divided by resistance (R). The CMF55121R00BHEB is a 121-ohm resistor, meaning that when a 12V current is applied to the resistor, the current passing through it will be 0.1A.The CMF55121R00BHEB also works through thermal effects. By turning electrical energy into heat energy, the resistor dissipates heat to maintain the voltage and current levels in the circuit. Heat generated by the resistor can be monitored by attaching a temperature sensor to the resistor body, allowing engineers to adjust their systems accordingly.

Conclusion

The CMF55121R00BHEB through hole resistor is an effective solution for controlling electrical current in numerous applications. Its ceramic construction and flame-retardant coating make it suitable for high power applications, such as power amplifiers and servo motors. The resistor also utilizes Ohm’s Law and thermal effects to convert electrical energy into heat energy and dissipate it safely.

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