CT9EW204

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Trimmer Potentiometers – CT9EW204 Application Field and Working Principle

Trimmer potentiometers are widely used in many electronic devices. They are adjustable resistors used to control the amount of current flowing through the circuit. The CT9EW204 trimmer potentiometer is a rotary-type, bushing-mount and single-turn adjustable resistor with a maximum power rating of 0.25W. Due to its small size, it is especially suitable for applications with limited space, including electronic toys, audio tuning equipment, musical instruments and medical instruments.

Application Field of the CT9EW204 Trimmer Potentiometer

The CT9EW204 trimmer potentiometer is a great choice for applications that require precise and variable adjustment of current. It is well suited for small signal control applications such as tuning musical instruments and audio equipment, making sound effects and adjusting the tone of electric guitars. It can also be used for controlling the pulse width of servomotors, adjusting illumination or controlling the speed of motors.

Working Principle of the CT9EW204 Trimmer Potentiometer

The CT9EW204 trimmer potentiometer is a variable resistor, meaning that it can be adjusted to produce different resistance within the same device. This type of potentiometer uses the carbon track principle of resistance adjustment. The rotation of the shaft is connected to a contact along a curved track which is a thin carbon film resistor element. As the shaft is rotated clockwise or counterclockwise, the contact moves along the curved track, changing the resistance of the resistor. The resistance can be fine-adjusted by rotating the clockwise or counterclockwise.

The resistance range of the CT9EW204 trimmer potentiometer can be adjusted from 0Ω to 10KΩ, providing precise control of current in applications that require fine tuning. The device\'s maximum power rating is 0.25W and it operates in temperatures between -25 and +85 degrees Celsius. The bushing-mount design allows the device to securely fit into small spaces within a circuit board.

Conclusion

The CT9EW204 trimmer potentiometer is a versatile adjustable resistor that can be used in many applications requiring precise adjustment of current. With its small size and high precision rotation, the device is perfect for applications with limited space. Its carbon track resistance adjustment feature allows the device to be fine-tuned to the desired resistance range, making it a perfect choice for applications such as audio tuning equipment and motor speed control.

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