EVM-EASA00B55

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Trimmer potentiometers are small, variable, three-terminal resistors with an adjusting arm, usually a screw that is tightened or loosened to vary resistance. They are typically used for fine adjustment of electrical parameters. EVM-EASA00B55 trimmer potentiometer is a popular model in the market.

The EVM-EASA00B55 is designed in a 0.25” square footprint, and has proven value in a variety of applications. This small but powerful trimming potentiometer can be used in the majority of circuit applications including those in the communications, instrumentation, control, and industrial sectors. The model EVM-EASA00B55 trimmer potentiometer has a resistance range of 10,000 to 1,000,000 ohms, with a 3 mm square shaft, and a provision for adjustment access through a 28 mm square plate.

In addition, this trimmer potentiometer has low power losses and superior mechanical stability. It is also highly durable and has a reliable performance throughout its operating lifespan. The EVM-EASA00B55 has various operating temperatures, enabling it to be widely used in many types of industrial environment.

The main application fields of the EVM-EASA00B55 trimmer potentiometer are the telecommunications sector, the data communication industry and the instrumentation sector. As it is compact and has a relatively small adjustment range, this model is also commonly used in radio frequency circuits and for fine adjustment of electrical parameters.

The working principle of the EVM-EASA00B55 trimmer potentiometer is based on the use of a mechanical arm to adjust the value of the resistor as the resistance changes due to the quick rotation of the arm. The adjustment can be done with the resistance scaled to where the adjustment arm is closest. This allows for accurate and repeatable resistance that can be finely adjusted using an adjustable screwdriver or a handheld tweezers.

The working of this trimmer potentiometer is based on a three terminal resistor. Two of the terminals are the small pins that are mounted on the board and the third one is the adjustment arm that is positioned in the middle to adjust the resistance. To increase the resistance, the adjustment arm is rotated in a clock wise direction and to decrease the resistance the arm is rotated in an anti-clockwise direction.

Once the correct resistance is set, the potentiometer is locked in position. This is done by a screw found at the back of the arm as a safety feature. This prevents any unwanted adjustments from being made. The trimmer potentiometer also has a high resistance temperature coefficient which ensures that the resistance value will not change even when exposed to extreme temperatures.

In summary, EVM-EASA00B55 trimmer potentiometer is a reliable and accurate tool that can be used for fine adjustment of electrical parameters, including those in the telecommunications and instrumentation sectors. It is designed with a small square footprint, a resistance range of 10,000 to 1,000,000 ohms, a 3 mm square shaft, and a provision for adjustment access through a 28 mm square plate. It has a working principle that is based on the use of a mechanical arm to adjust the value of the resistor as the resistance changes due to the quick rotation of the arm. This trimmer potentiometer is highly durable and has a reliable performance throughout its operating lifespan.

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