RA20NASD502A

Rotary Potentiometers

Rotary potentiometers are electrical components that enable the use of a single control for several functions, such as volume, tone and gain. Such components are usually round in shape and use a circular resistor element to regulate a range of resistances. The turning of the dial changes the resistance across the resistor, allowing the user to adjust the output for a given application.

RA20NASD502A Application Field

The RA20NASD502A is a rotary potentiometer with a total resistance of 500 ohms. It features a long life and low torque performance, and is therefore suitable for a range of applications. These include audio systems, guitar amplifiers, dimmer controls, lighting systems, electronic instrument control systems, and more.

RA20NASD502A Working Principle

The working principle of a rotary potentiometer is based on the simple structure of a slider mechanism, which consist of a rotating wheel connected to a linear resistor. The resistor is interlocked with the wheel, so that when it is rotated, a moveable contacting element (or slider) is moved through the resistor’s track. As the slider moves, the resistance changes accordingly and the output is adjusted. The RA20NASD502A model has two fixed contact points and one moveable contact point, allowing for accurate and precise adjustment of the output.

Rheostats

Rheostats are electrical components that act as variable resistors. These components are composed of two terminals and a resistance track, with a sliding contact that slides along its length. As the contact moves, the resistance changes, thereby allowing the user to adjust the flow of electricity to a given application.

RA20NASD502A Application Field

The RA20NASD502A rheostat is typically used in audio systems, dimmer controls, lighting systems, and electronic instrument control systems. It also has several other applications, such as controlling the speed of a motor, adjusting the brightness of lamps, and providing variable resistance to AC or DC voltage sources.

RA20NASD502A Working Principle

The working principle of a rheostat is based on the simple structure of a resistor mechanism. It consists of a sliding contact that slides along the track of a resistor. As the contact is moved, the resistance changes, allowing the user to adjust the output for a given application. The RA20NASD502A model has two fixed contact points and one moveable contact point, which can be adjusted to either increase or decrease the resistance in the circuit.