3290W-1-502

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Trimmer Potentiometers

3290W-1-502 is a commonly used trimmer potentiometer, widely seen in industrial fields. It is a three-terminal adjustable resistor. The three terminals consist of a resistive element and two fixed external connections. The two terminals at the ends of the resistive element are connected to the external connection, while the third one is a wiper used to adjust the current flow between the two terminals. This trimmer potentiometer is one of the most common types of resistors for a wide variety of applications.

Application Field

3290W-1-502 is typically used for user control applications such as setting reference voltages, amplitude control, gain control, frequency control, and digital to analog conversion control. The 3290W-1-502 is also used in adjustable power supplies and motor speed controllers. Recent applications include the automated tuning of radio receivers.

Working Principle

The 3290W-1-502 works by varying the resistance between two of the three terminals when the user moves the wiper terminal along the resistive element. The resistance between the two fixed terminals is typically referred to as the nominal resistance. When the wiper moves along the resistive element, it changes the resistance between the two external connections which is then used to control the voltage or current in a circuit. The total resistance of the 3290W-1-502 can range from 0Ω to the nominal resistance depending on the location of the wiper terminal.

Uses

3290W-1-502 trimmer potentiometers are used for a range of applications including precision voltage adjustment, threshold sensing, frequency adjustment, tuning, trimming, analog to digital conversions, gain adjustment, etc. The 3290W-1-502 is widely used in low power, low frequency applications due to its low cost and high accuracy. It is also highly resistant to dust, temperature, and corrosive agents.

Conclusion

The 3290W-1-502 trimmer potentiometer is a versatile and reliable component for a variety of adjustable user control applications. Its user friendly operation allows for easy adjustments, and its high accuracy and low-cost make it attractive to many designers. The wide range of application fields, such as radio tuning and motor speed controllers, attest to its versatility and reliability.

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