381N5MEG

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Rotary Potentiometers and Rheostats, both devices that rely on a voltage changing resistor for the purpose of controlling the electrical current in a circuit, employ similar working principles and can be used for the same application field — the 381N5MEG. A 381N5MEG is a resistor with a three-wire connection, which means that the incoming voltage is split to two parts, one going to the positive terminal of the device, and the other going to the negative. The third wire is connected to both the positive and negative terminals and is used to measure the voltage for the purposes of control.

A potentiometer, like the 381N5MEG, consists of a rotating contact, known as a wiper, inside a resistive strip that is used to control the voltage within a certain range. As the wiper moves along the resistive strip, it changes the resistance within the circuit, which creates a corresponding voltage change. For instance, when the wiper moves towards the positive terminal, the resistance increases, leading to a decrease in voltage. This device can be used in various applications where the need to control the voltage is paramount. Such applications include controls for motors and motorspindles, as well as volume, filter, and speed control in various other audio/video devices.

A rheostat is a similar device to a potentiometer, though its operations and applications are slightly different. Generally speaking, a rheostat consists of only two wires, and the resistance within the device is changed by either increasing or decreasing the resistance along the entire length of the circuit. This means that the voltage can be controlled over a wider range with a rheostat than with a potentiometer, though its applications are limited to mainly controlling current in a circuit. The 381N5MEG can be used as a rheostat in applications where its adjustable range of resistance is required, such as in circuit protection against overload.

In general, these two devices have nearly identical applications – the 381N5MEG can be used as either a potentiometer or a rheostat. Both can be used to regulate voltage in a variety of different applications, though rheostats are typically reserved for places where a wider range of resistance is needed. Additionally, the 381N5MEG can be used to measure resistance by utilizing the third wire to measure the voltage. It is important to note that the 381N5MEG is not able to provide the same level of accuracy as a dedicated voltage or resistance meter, so it should not be used in situations where precision is paramount.

In conclusion, the 381N5MEG is a versatile component that can be used both as a potentiometer and a rheostat, as well as being employed for the purpose of measuring resistance. While its applications are not limited to those mentioned here, the 381N5MEG is most suited to controlling voltage in a variety of audio/video applications, as well as providing overload protection in circuits.

The specific data is subject to PDF, and the above content is for reference