RA20LASB103A

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Rotary Potentiometers and Rheostats are two kinds of form-factor, functionally similar electronic components used in many electronic circuit designs.

The RA20LASB103A is a small, relatively inexpensive potentiometer made of a thermally conductive PPS mounting shaft and a steel black finish. It can be used for various applications such as volume control, tone control, and gain adjustment in amplifiers and sound systems. This product is produced by Alps Electric Co., Ltd., a global electronics components manufacturer.

Application Field of RA20LASB103A

The RA20LASB103A is mainly used in different types of audio equipment, like car stereos, guitar amplifiers, speakers, headphones, home theater systems, and also in some medical equipments and home robots. It is also suitable for use in any application that requires low-noise manual adjustment, such as power supply regulation, manual gain control, and phase shift adjustment.

The RA20LASB103A is limited to low-voltage, low-power amplifier applications with audio signals at frequencies below 20 kHz.

Working Principle of RA20LASB103A

The working principle of the RA20LASB103A Potentiometer can be divided into two distinct steps. Firstly, the user rotates the knob to control the position of the moving contact arm on the device’s slotted track. This causes a change in voltage of the output signal, which is proportional to the angle of the knob rotation. Secondly, the device utilizes a sliding contact arm which interrupts the voltage supplied from the main terminal. The resulting output voltage then varies according to the position of the contact arm.

The RA20LASB103A also has a built-in start-stop mechanism to provide precise, accurate adjustment. This ensures that the user is able to precisely control the output signal within a certain range. The device also offers a broad range of signal sensitivity, with an adjustable resistance range of 0 – 10kΩ.

Conclusion

The RA20LASB103A Potentiometer is a low-cost electronic component made of a thermally conductive PPS mounting shaft and a steel black finish with a broad resistance range and adjustable signal sensitivity. It can be used for many different types of audio equipment such as car stereos, guitars, speakers, headphones, and also for various medical and home robotics applications.

The RA20LASB103A works on a two-step process wherein the user adjusts the signal sensitivity and then adjusts the output voltage according to the position of the contact arm. It also has a start-stop mechanism to enable accurate adjustment and has a resistance range of 0 – 10kΩ.

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