EVM-3WSW80B22

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Trimmer potentiometers (also known as trim pots) are small adjustable potentiometers that are designed to act as resistance in electrical and electronics circuits. These potentiometers typically have three terminals and are widely used in many applications where a precise adjustment of resistance is needed. One common example is in the setting of the sensitivity of beepers and buzzers. The EVM-3WSW80B22 is an adjustable trim pot and it has a variety of applications across nearly every industry, but it is most commonly found in measuring or monitoring related projects and Commercial Audio.

EVM-3WSW80B22 Application Field

The EVM-3WSW80B22 is a type of 3-way surface-mount trimmer potentiometer that provides precise adjustment of resistance in a given circuit. It is shielded and is made of a strong material for long-term reliability. The entire component is a two-part unit consisting of a base and an adjustable plastic top and provides a total resistance range of 10-250 ohms. It offers 3 distinct measurements for Off-Time, On-Time and Resistance, and is commonly used in systems for controlling operating parameters, frequency controls, adjustment of audio levels, and other related applications.

These trimmer potentiometers are ideal for applications that require a precise adjustment of resistance due to their small size and easy-to-adjust design. Common applications for trimmer potentiometers include automotive, medical device, military, consumer electronics, telecommunications, process controls, outdoor lighting, and industrial systems. It is also used in audio mixing consoles, preamplifiers, power amplifiers, CD players, and other audio-related equipment for precise adjustment of audio levels. In medical and healthcare devices, the trimmer is used to give precise control over various settings such as mixing ratio for drug delivery, calibration of scales, and other medical applications.

EVM-3WSW80B22 Working Principle

The EVM-3WSW80B22 works by controlling the current within an electrical circuit. As the trimmer is adjusted, it will increase or decrease the amount of current traveling through the circuit, thereby changing the resistance. This resistance is measured in ohms and is equal to the total voltage divided by the current. By adjusting the trimmer, the total resistance of the circuit can be altered allowing for a precise control of the current in the system.

Trimmer potentiometers are constructed with three terminals, one of which is usually grounded. By adjusting the position of the slider, the resistance of the circuit is increased or decreased as necessary. The slider itself is usually of a plastic or ceramic material and is adjustable up to ±10% of its total resistance. The EVM-3WSW80B is made from polyamide having a 0.50 mm wide tab attached on its 5.00 mm wide terminal. Electrical energy is moved throughout the trimmer as a result of the movement of the slider across the surface.

Trimmer potentiometers such as the EVM-3WSW80B22 provide an advantage over traditional mechanical potentiometers in that they need little maintenance and are much more accurate. Furthermore, they are extremely small which makes them ideal for compact systems or applications with limited space. Their adjustable range is larger than standard potentiometers, allowing for a much wider range of adjustment.

Conclusion

In conclusion, the EVM-3WSW80B trimmer potentiometer is a highly adjustable, small and reliable component of potentiometer used in many applications where a precise adjustment of resistance is needed. Its adjustable range is larger than standard potentiometers and it provides a total resistance range of 10-250 ohms. The component is divided into two parts—a base and an adjustable top—allowing for easy adjustment. It is ideal for applications that require a precise adjustment of resistance such as automotive, medical device, military, consumer electronics, telecommunications, process control, outdoor lighting, and industrial systems.

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