SM4W201

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• Introduction： Potentiometers are widely used in industrial, electronic, medical and consumer applications. Trimmer potentiometers are designed to provide precision adjustable resistance in a compact form. The SM4W201 is a low cost, single turn trimmer potentiometer that offers long cycle life and good linearity.

• Applications： The SM4W201 is suitable for a wide range of applications including: audio volume control, amplifier application, high-end professional audio and audio recording/playback systems. Other uses for the SM4W201 include instrumentation testing, calibration circuitry, robotics and medical equipment.

• Design： The SM4W201 is constructed from carbon potentiometer elements and a metal core. The carbon element provides excellent electrical conductivity and good linearity. The metal core provides excellent stability and long life. The SM4W201 can also be supplied with a range of temperature compensation options.

• Working Principle： The working principles of the SM4W201 are based on basic electrical principles. When current is applied to the potentiometer, the carbon element creates a voltage drop across the resistor. The amount of voltage that is dropped is determined by the amount of resistance in the potentiometer. The resistance of the pot can be adjusted by rotating the shaft or by changing the position of the wiper. The voltage output is then measured across two taps on the pot.

• Conclusion： The SM4W201 trimmer potentiometer is an excellent choice for precision applications where space is at a premium. Its long cycle life, sturdy construction and good linearity make it ideal for a wide range of industrial, electronic, medical and consumer applications. Moreover, its low cost makes it a low-cost solution for applications that require precision control.

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