6639S-301-502

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Rotary potentiometers and rheostats are versatile, robust, temperature-stable resistors commonly used in a variety of electronic applications. They are used to adjust or modify electrical signals or circuits by continuously altering their resistance. In some cases, they are also used to retain an existing resistance value with little change over time.The 6639S-301-502 is a specific type of rotary potentiometer and rheostat, which stands out from the others due to its unique characteristics. This particular type of device is highly reliable and provides accurate and consistent performance regardless of temperature variations, environmental exposure, or usage frequency.The 6639S-301-502 is made up of several components which are encased in a robust plastic housing. It consists of a spindle or shaft that is connected to a small pulser wheel. The pulser wheel has three tiny teeth that rest against the contacts in the potentiometer. As the pulser wheel rotates, the teeth contact the contacts in turn, increasing or decreasing the resistance as needed.In addition to the pulser wheel, the 6639S-301-502 also has a wiper, which is essentially a printhead-style arm connected to the pulser wheel. The arm rotates in tandem with the pulser wheel and adjusts the resistance of the potentiometer or rheostat.The application field of the 6639S-301-502 is quite wide and varies from audio systems and amplifiers to precision measuring and control applications. For example, they are used in audio systems to adjust the volume level, and in amplifiers to adjust the input or output levels. Similarly, they are used to control the speed of motors, the flow of liquids, and the temperature of rooms and devices.In terms of working principle, the 6639S-301-502 operates similarly to other rotary potentiometers and rheostats. As the pulser wheel rotates, it causes the three teeth to come into contact with each of the contacts on the potentiometer in turn. As the pulser wheel rotates, the resistance of the potentiometer or rheostat increases or decreases, depending on the direction and position of the wiper.The 6639S-301-502 is a very versatile and reliable device that is capable of providing accurate and consistent results in a variety of contexts. It is rugged and highly resistant to environmental exposure and temperature variations, making it the perfect option for any number of precision measuring and control applications. If you\'re looking for a reliable rotary potentiometer or rheostat for your project, the 6639S-301-502 should be your first choice.

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