5311R20KL.5

Rotary Potentiometers, Rheostats

The 5311R20KL.5 is a rotary potentiometer and rheostat. In general, a rotary potentiometer is a three-terminal device that is used for measuring electric potential. It is composed of a resistive element with a wiper and two fixed contacts, and is typically packaged with a knurled shaft and a body that is rotatable. A rheostat is a two-terminal output device that has an adjustable input and is used for adjusting voltage or current in electronic circuits.

Application Field

The 5311R20KL.5 can be used in a variety of applications including motor control, speed control, amplifier gain control, audio attenuation, and light dimmers.

Working Principle

The working principal of a 5311R20KL.5 is based on electrical resistance. The knurled shaft connected to the potentiometer can be rotated. When the shaft is rotated, the position of the wiper moves along the resistive element, creating an output voltage which is an indication of the degree to which the potentiometer has been rotated. The output voltage can be an adjustable current or voltage level, adjustable power, or some lowest or highest value, depending on the application for which it is used.

Advantages

The 5311R20KL.5 is a practical choice for applications requiring a continuous and adjustable adjustment of current or voltage level. It is relatively inexpensive, has a very low power consumption, and can be used in applications with limited space. Additionally, its knurled shaft provides a tactile feel that assists in adjusting the output voltage or current. It is also highly reliable and has long life-span.

Limitations

The 5311R20KL.5 has some limitations that should be taken into consideration before using it in an application. It is not suitable for use in harsh environments due to the components’ susceptibility to dust and moisture. Additionally, its construction is affected by temperature variations. Finally, its range of adjustment may require multiple turns of the knurled shaft, which can be a source of frustration or confusion.