SM-42X200

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Trimmer Potentiometers

The SM-42X200 is a miniaturized trimmer potentiometer specifically designed for applications requiring a small package size. The SM-42X200 is a three-terminal device rarely found in the trimmer potentiometer market, consisting of two fixed end contacts and one value control contact, which when moved through the physically adjustable contact, changes the resistance between the two fixed end contacts.

Applications

The primary application field of SM-42X200 trimmer potentiometers is the adjustment, measurement and control of electric signals. Its small package size and low power consumption are invaluable in these applications. Other common applications include volume controls, display brightness regulation, electronic device calibration, frequency regulation, variable ac hum filtering, audio power amplifier tuning, signal balancing, etc.

Working Principle

The working principle of SM-42X200 is relatively simple and relies on the electrical properties of resistors. An electrical current will flow between the two fixed contacts when connected to a power source. When the third contact, or variable contact, is moved through the physically adjustable contact, the resistance between the two fixed contacts changes, thus altering the amount of current that passes through the circuit. The amount of current passing through the circuit can then be adjusted by changing the position of the variable contact.

The SM-42X200 is designed with a wide range of adjustable resistance, ranging from 0 Ω to 100 kΩ. It provides a high tolerance of ±20% at worst case conditions, as well as low temperature coefficients. As a result, it is an effective and reliable tool for tuning and measuring electrical signals.

Conclusion

The SM-42X200 trimmer potentiometer is a miniaturized, three terminal device that is widely used in applications requiring adjustment, measurement and control of electric signals. Its small package size and low power consumption make it an invaluable tool. It is constructed with a wide range of adjustable resistance, a high tolerance and low temperature coefficients. As such, it is an effective and reliable tool for tuning and measuring electric signals.

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