EVN-D8AA03B13

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Trimmer Potentiometers

The EVN-D8AA03B13 is a trimmer potentiometer (also known as variable resistors). It is a three-terminal resistor with a sliding or rotating contact that forms an adjustable voltage divider. It is commonly used for general purpose applications such as adjustable gain circuits and to adjust output threshold levels.

Application

Trimmer potentiometers are used in a variety of electronic circuits and components, including oscillators, voltage regulators, circuit protection, and audio applications. They provide a convenient way to adjust the operating current, voltage, or resistance in a circuit. In addition, they can also be used as controls for motors and solenoids.

Working principle

A trimmer potentiometer consists of a resistive element with three terminals. The outer terminals connect to the resistive element, and the middle terminal is connected to the slider or dial. As the slider is adjusted, the resistance changes because it is now covering more or less of the resistive element. This in turn, produces a change in the voltage (or current, depending on how it is used) across the two outer terminals.

The rate of change of resistance is defined by the “taper” or “logic law”. The most common taper is linear, which means that the resistance linearly increases or decreases as the slider is moved. Other tapers are available, such as logarithmic and exponential.

Most trimmer potentiometers are small and have a low power rating. They are commonly rated up to one watt, but some can withstand higher power levels. Some types are designed for higher operating temperatures and high humidity, while others are designed for precision applications.

Conclusion

The EVN-D8AA03B13 is a trimmer potentiometer that is used in different electronic applications. It works by adjusting the resistance of the resistive element by changing the position of the slider. The allowable power ratings and temperature range of operation should be considered when choosing the right product.

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