ST42EB105

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Trimmer Potentiometers

Trimmer potentiometers are miniature devices used to adjust electrical signals to achieve the desired level, or for fine- tuning within a circuit. The ST42EB105 is a miniature single turn potentiometer that makes it suitable for a wide variety of applications. This article will provide an overview of the ST42EB105 application field and working principle.

Application Field

The ST42EB105 trimmer potentiometer can be used to adjust the resistance in a given range of values, which in turn can affect the amount of current or voltage passing through a circuit. The device is therefore suitable for applications such as:

• Amplifier gain setting
• RF frequency synthesis
• Level control
• Fader control
• Power supply voltage setting
• Signal conditioning

The device has a resistance range of 1.0 kω to 10.0 kω. It can be used to adjust a circuit’s voltage or current flow by changing the resistance from within this range. The ST42EB105’s linear taper also makes it ideal for level-setting functions.

Working Principle

The ST42EB105 trimmer potentiometer operates using a mechanical contact system. The resistance of the device is adjusted by turning a small spindle, which then moves a contact along the track of the device. By adjusting the resistance of the device, the operator can vary the amount of current or voltage passing through the circuit.

The ST42EB105 trimmer potentiometer also features a linear taper, which enables the device to maintain a consistent resistance over the entire range of adjustment. The device also features a large resistance-change sensitivity of 35%/revolution, which allows for precise adjustment.

The ST42EB105 trimmer potentiometer is suitable for a wide variety of applications and is an ideal choice for level setting, adjusting gain and conditioning signals. This device offers an adjustable resistance range of 1.0 kω to 10.0 kω, a linear taper, and a large resistance-change sensitivity of 35%/revolution, which allows for precise adjustment.

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