ERG-2SJ120V Resistors

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Through hole resistors are an important element in a variety of electronic devices and systems. The ERG-2SJ120V is one example of a through hole resistor with particular application fields and working principles.

The ERG-2SJ120V is a radial lead resistor, having leads that are connected from the body of the resistor in a radial direction. The body of the resistor is typically composed of ceramic, composed of deposited layers of metal onto the surfaces of ceramic intended to conduct electricity. The resistor is generally cylindrical in shape, being axially symmetrical about its central axis. A solder cup is found at the end of each lead for secure attachment of the leads to a PCB.

The ERG-2SJ120V has a power rating of 0.24W, and a resistance range of 1Ω to 1MΩ. Its construction is cut and wound from nichrome wire, with a nickel- chromium ratio of typically 60-40. This resistor can operate at temperatures up to 125℃, and can be used in environments of high stress and vibration. Its capacitance and inductance are both relatively low when compared to other resistors (14pF/100mm and 0.18uH/ 100mm).

The ERG-2SJ120V is primarily used in the electronics industry, owing to its ability to handle high current and very low resistances. It is designed to perform in applications where low noise is desired, such as in the audio and video electronics, or in radio and telephone circuitry. Other uses include providing electrical connectivity in lighting, motors, and other home appliances. Its resistance stability over wide temperature ranges also makes it an attractive choice for high temperature industrial applications.

The working principle of a resistor is dependent upon the electrical resistance produced by the resistor. Resistance is the opposition to the flow of electrons through a conductor, and is measured in ohms (Ω). The ERG-2SJ120V provides a given resistance (set to value at the time of manufacture) dependent upon the material from which it is made and the type of resistor element used. The resistance value is achieved by the electrical properties of the ceramic, and by the geometry of the winding element.

The operating principle of the ERG-2SJ120V is simple. Current flows through the resistor, and is resisted by the material of the body. This resistance causes the voltage across the resistor, and the power dissipation due to the voltage drop can be calculated. Repetitive when the pulse frequency is relatively low, as is the case for many applications. The resistor must be designed to dissipate the heat generated, and should not be operated beyond its power rating.

The ERG-2SJ120V is a through hole resistor used for a variety of applications in the electronics industry. It provides a reliable and stable resistance that is relatively low in capacitance and inductance. Its cylindrical construction provides for protection from the environment and for easy mounting in a PCB. It’s operating principle is simple: current passes through the resistor, and a voltage drop results, dissipating a proportionate amount of power.

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