20J120

Series:	20
Packaging:	Bulk
Part Status:	Active
Resistance:	120 Ohms
Tolerance:	±5%
Power (Watts):	10W
Composition:	Wirewound
Features:	Flame Retardant Coating, Safety
Temperature Coefficient:	±30ppm/°C
Operating Temperature:	--
Package / Case:	Axial
Supplier Device Package:	Axial
Size / Dimension:	0.394" Dia x 1.858" L (10.00mm x 47.20mm)
Height - Seated (Max):	--
Number of Terminations:	2
Failure Rate:	--

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Through Hole Resistors: 20J120 Application Field and Working Principle

Through hole resistors, sometimes called R-Type resistors, are electromechanical electronic components with resistance values ranging from hundredths of an ohm up to several megohms. They are cylindrical devices, typically with two metal leads that are connected at each end to create electrical contact. They require special tools for mounting and are designed so that they cannot be mechanically damaged during installation.One example of this type of resistor is the 20J120. It has a resistance value of 20J ohms, a tolerance of ±20%, maximum power rating of 120 watts, and a dielectric withstanding voltage of 500 volts. This resistor has a very wide range of applications, including power distribution, motor control, lighting control, heavy load switching, and more.The working principle of the 20J120 can be understood by understanding how a resistor works in a circuit. When current flows through a resistor, some of it is dissipated as heat, and some of it is lost as electrical energy. This is because resistors are constructed of material which changes an alternating current (AC) into direct current (DC) and also because of the resistance of the material. This resistance means that any current that is fed into a resistor is dissipated as heat energy across the surface of the resistor instead of being fed to the other components.The 20J120 is designed to resist a wide range of high voltages, while still providing a consistent voltage throughout the entire system. Its resistance value is determined by the length and width of the resistor, as well as the materials and dielectric used in its construction. As the voltage increases, the resistance decreases, meaning that the higher the voltage, the less resistance the resistor provides.A typical application of the 20J120 is in heavy load switching applications. In these types of installations, the resistor helps to provide a medium between the power source and the load. For example, if a motor control system needs to switch from a low voltage to a high voltage, the resistor can help reduce the voltage throughout the system, ensuring a consistent power supply to the motor.The 20J120 is also used in circuit protection systems, as its resistance can help reduce the risk of overloads caused by high current and short circuits. When connected to a circuit board, the resistor can act as a protector, absorbing any excess power and dissipating it as heat energy instead of passing it to the circuit board. This helps to protect the board from any accidental damage caused by current overloads.Overall, the 20J120 is a very reliable resistor, suitable for a variety of applications. Its resistance value is determined by the materials and dielectric used in its construction, and its ability to withstand a wide range of voltages makes it a great choice for a variety of circuit protection systems. As such, the 20J120 is an essential component in any electronic system, and it is often used in motor control and switching, power distribution, and lighting control applications.

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