EVM-AASA00B13 Potentiometers, Variable Resistors

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Trimmer Potentiometers are used widely in multiple applications, allowing precise control over electric and electronic circuits. One particular type, EVM-AASA00B13, is equipped with a variety of features that make it especially well-suited to particular tasks. Understanding its working principle and scrutinizing the potential uses of this potentiometer will give future engineers or electronic hobbyists a comprehensive appreciation of its versatile nature.

The EVM-AASA00B13 is a multiturn trimming potentiometer, featuring tolerance of ±20% for increased accuracy over traditional potentiometers. The control is mounted on a small board, allowing for it to be mounted on a PCB in tight spaces, perfect for modern, space-saving design applications. A rotary switch on the potentiometer allows for up to 10-turns of resistance control.

The potentiometer is built with a low power consumption structure, meaning it uses low current for operations—a trait especially useful in battery-powered equipment. On top of that, the device is also hermetically sealed to protect it against dust and moisture, giving it further durability and reliability to ensure it runs for a longer-than-average time.

In terms of applications, the resistance range of the EVM-AASA00B13 makes it suitable for a variety of feedback loops, such a motor speed, output voltage, and current feedback. It is also able to control output levels for amplifiers, sound, light, and other inputs, making it a great choice for audio and visual equipment. Furthermore, its small size and lightweight nature lends itself well to portability.

To comprehend the working principle behind this trimmer potentiometer, it’s important to understand the concept of resistance. Resistance is the hindrance to electrical current flow, measured in Ohms. In this device, the resistance is varied through an adjustable arm attached to the shaft, allowing for the current levels to be precisely controlled.

The current traversing through the potentiometer is connected to the three terminals located on the device in a fixed order. A slider is connected to the adjustable arm, and when it is rotated, the arm contacts different sections of the resistor. This causes the resistance to vary, allowing for more or less current to flow depending on the adjustment.

Once the resistance of the device is adjusted, the current is sent out of the other two terminals, and distributed accordingly throughout the electronics system. Altering the resistance of the potentiometer with the rotary switch creates a feedback system, where the resistance is readjusted according to the changes in current.

In summary, the EVM-AASA00B13 is a trimmer potentiometer that is tailored for modern engineering volume. Its slim and lightweight construction yet reliable and durable circuitry allows for it to be used in a wide variety of applications, from motor speed to audio to light control.

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