6638S-1-202

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Rotary Potentiometers and Rheostats are versatile electronic tools applied in a wide variety of fields, such as audio amplifiers, communication systems, medical equipment and more. The 6638S-1-202 is a high-performance rotary potentiometer, part of the 6638 series, designed for continuous rotation and precise control. This article will provide an overview of the 6638S-1-202\'s field of application and working principle.

Field of Application

The 6638S-1-202 is ideally suited for a large variety of applications that require accurate and reliable control. The rotary design makes the 6638S-1-202 suitable for linear operation of motorized devices, such as stepper motors. The saturated output can deliver reliable stability in communication systems with up to 32 channels. Its extended operating life is also suitable for use in various industrial applications.

Additionally, the 6638S-1-202 is also greatly beneficial in demanding medical applications, such as Magnetic Resonance Imaging (MRI) and Radio Frequency (RF) devices, which need to operate over a wide range of temperatures. The series\' superior linearity also ensures precise voltage control in medical instrumentation and ultrasonic medical imaging equipment.

Working Principle

The 6638S-1-202 is a digitally-controlled, three-pole rotary potentiometer with a thick-film resistor element. It produces a resistor divider string output voltage, relative to a reference voltage input, that is linearly proportional to its rotation angle. The resistor divider string is composed of three terminal pins, denoted as A, B and W. As the stainless steel shaft is turned, the resistance between pins A and B and the reference voltage between pins B and W vary in direct proportion.

The resistance between pins A and B is known as the total resistance, while the resistance between pins B and W is half of the total resistance. By varying the resistance between pins A and B, the output voltage is changed between a minimum open circuit voltage of 0V and a maximum output voltage of the reference voltage.

The precision of the 6638S-1-202 is guaranteed by the precision-engineered hybrid drive system incorporated in the design. The system features a unique combination of precise slide wire technology and direct-drive technology, allowing for infinite resolution and zero backlash. The digital interface conforms to the SPI and I2C communications protocols, making it simple to interface with microcontrollers.

Conclusion

The 6638S-1-202 is a high-performance rotary potentiometer that is designed for a wide range of applications. Its superior linearity and extended operating life make it an ideal choice for precise control, especially in demanding medical instrumentation and communication systems. The digital interface also allows simple and easy integration with most microcontrollers.

The specific data is subject to PDF, and the above content is for reference