Series:	WW
Packaging:	Tape & Reel (TR)
Part Status:	Active
Resistance:	21.5 Ohms
Tolerance:	±1%
Power (Watts):	0.4W
Composition:	Wirewound
Features:	Moisture Resistant
Temperature Coefficient:	±20ppm/°C
Operating Temperature:	-55°C ~ 350°C
Package / Case:	Axial
Supplier Device Package:	Axial
Size / Dimension:	0.110" Dia x 0.312" L (2.79mm x 7.92mm)
Height - Seated (Max):	--
Number of Terminations:	2
Failure Rate:	--

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Through Hole Resistors

Through hole resistors are an integral part of any electronic device. The WW12FT21R5 is a through hole resistor which can be used in a multitude of different applications. In this article, we will explore the use of the WW12FT21R5 in different fields and its working principle.

Resistance Basics

Before we can discuss the use and application fields of the WW12FT21R5, we must understand the basics of electricity and resistance. Resistance is opposed to the flow of electrons, and it is measured in ohms. In a resistor, electrons travel in a circle and the amount of resistance that they encounter is determined by the resistor’s shape, length, and material.

Application Fields of the WW12FT21R5

The WW12FT21R5 is a through-hole resistor which has a wide range of applications. The first of these is in consumer electronics, where it is used as a limiter to reduce the power output of various components and reduce the risk of damage. It is also used in computers to regulate voltage and reduce the risk of system failure.The WW12FT21R5 is also commonly used in industrial automation and robotics. In automation systems, it is used to limit the power output of servo motors and reduce the risk of them exceeding their torque rating. It is also used to regulate the voltage in robotic systems, allowing them to operate within expected ranges.Finally, the WW12FT21R5 is also used in medical applications. It is used to regulate the power output of laser treatments and other medical instruments. This ensures that they are operating safely and within the parameters prescribed by the doctor.

Design Considerations

When deciding on the design of a through-hole resistor, there are several important factors to consider. First, the size of the resistor should be chosen based on the application—larger resistors are better suited for higher power outputs. Second, the material used should be chosen based on the desired resistance level—metal alloys are the most commonly used material. Finally, the resistance should be chosen based on the expected load on the system—lower resistance values are best for applications with high load requirements.

Working Principle

The WW12FT21R5 works on the principle of resistance.Electricity is passed through the resistor, and the electrons encounter resistance as they travel through it. This resistance is determined by the shape, length, and material used in the construction of the resistor. The higher the resistance, the less electric current is allowed to pass through, thereby reducing the power output of the device.

Conclusion

In conclusion, the WW12FT21R5 is a through-hole resistor which can be used in a variety of different applications. Its working principle is based on the resistance that the electrons encounter as they travel through the resistor. It is a very important component in any circuit and is essential for regulating the power output of a given device. By understanding the basics of resistance and the design parameters necessary for a successful resistor, engineers and designers can ensure that their application is running safely and efficiently.

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