20J40RE

Series:	20
Packaging:	Bulk
Part Status:	Active
Resistance:	40 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

Through hole resistors are a type of resistor that have two leads extending from both the ends of the resistor and pass through the holes on the circuit board. Through hole resistors are most commonly used in the electronics industry and have been in use for decades. They are the most reliable type of resistors and are nearly impervious to wear and tear. As many of the electronic devices have become smaller and more complex, the use of through hole resistors has come down, and they are being replaced by smaller and more efficient surface mount resistors.

20J40RE application field and working principle

The 20J40RE is a through hole resistor. This resistor has two metal leads which pass through two holes in the circuit board. The 20J40RE is an axial lead resistor with a rating of 20 Ohms at 40 Watts, with its voltage rating being 400 volts. This resistor finds application in high power circuits such as motor drives, and general industrial, commercial, and consumer applications, where high power is required.The basic working principle of the 20J40RE is the same as any other resistor. The current flowing through these resistors is interrupted by the resistance of the material that makes up the resistor. This resistance opposes a change in the flow of current and thus, reduces the current flow to the load. The value of the resistance is determined by the length and cross-sectional area of the resistor material. This Resistance value is what defines the 20J40RE and its capability to operate safely in a particular circuit.Another important characteristic of the 20J40RE is its power rating. The power rating determines the wattage of the resistor that it can handle safely. As the power rating is 40 Watts, the 20J40RE is particularly suitable for high current applications, where high power is required. It is important to note that the power rating must never be exceeded in order to avoid possible fire or other damage from occurring to the resistor.In addition to this, the power rating of the 20J40RE is determined by its temperature capability. Unlike other resistors, it is designed to be able to handle higher temperatures and is therefore suitable for use in applications that require high-temperature operation. It is also suitable for applications with high-voltage, as its rating of 400 Volts ensures that adequate protection is provided to the resistor.Finally, the material used for making this resistor also contributes towards its reliability and durability. The resistor is made up of high-grade materials, which makes it robust and ensures that it is able to withstand vibrations, shocks, and other environmental factors. This provides a level of reliability to the 20J40RE and ensures that it performs at its best, even in volatile and harsh conditions.In conclusion, the 20J40RE is a type of through-hole resistor which is suitable for high-power applications, but is capable of operating safely and reliably in a variety of conditions. By utilizing the two leads that pass through the circuit board, the resistor is able to provide a standardized resistance, while also ensuring that the power rating and temperature rating of the resistor are adequate for the application. Furthermore, the high-grade materials used in the making of this resistor ensures its durability and reliability, even in harsh conditions.

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