RJR26FP103M

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Trimmer potentiometers are a type of component used for controlling electronic circuits. They are typically used as part of an adjustable feedback control system to control the operation of the circuit. The RJR26FP103M is a trimmer potentiometer and will be discussed in this article to explain the application field and working principle.

Application Field: Trimmer potentiometers are often used in audio applications, such as amplifiers and preamps, as well as in radio frequency applications like antenna tuning. They are also commonly used in radios, televisions, and other consumer electronics for their precise control of parameters such as frequency, power, and gain. Trimmer potentiometers are also an integral component of control systems such as automated valves, servos, and motor drives.

Working Principle: The basic working principle of a trimmer potentiometer is the same as a regular potentiometer. It consists of a resistive element that is connected to three terminals. Depending on the configuration, the resistive element is either a single layer of resistive material or a stack of resistive layers. This resistive element is then connected to a wiper contact, which is the part of the trimmer potentiometer that is adjusted to control the circuit. By varying the position of the wiper contact on the resistive element, the amount of current passing through the wiper contact can be precisely controlled.

In the case of the RJR26FP103M, the resistive element is a stack of 4 resistive layers, each of which is a different resistance. This allows the user to precisely adjust the resistance value of the trimmer potentiometer by changing the wiper contact’s position on the stack. The RJR26FP103M also features an additional 2 terminals, which are used to connect the resistive element to a control voltage. By applying a control voltage to these terminals, the user can control the wiper contact’s position on the stack, thus controlling the amount of current passing through the wiper contact.

The RJR26FP103M also features an integrated switch button, which allows the user to switch between the high and low resistance values. This feature is ideal for applications where the resistance value needs to be changed frequently, such as in a radio frequency application where the antenna needs to be tuned. In such cases, the user can quickly switch between the two resistance values simply by pressing the integrated button.

Overall, the RJR26FP103M is a great example of a trimmer potentiometer and is suitable for a variety of applications. Its integrated switch button makes it ideal for applications where a rapid change in resistance value is needed, and its precise control of current makes it ideal for audio and radio frequency applications.

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