SM-3TW205

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Trimmer Potentiometers are divided into 2 types: rotary and slide. And nothing can represent this better than the SM-3TW205. These are miniature-size 3-terminal type trimmer potentiometers featuring a wide range of resistance values. It is many times smaller than what’s conventionally available, so it’s advantageous in a variety of applications.

Application Field

SM-3TW205 is used for many products ranging from automotive equipment such as window wipers to office equipment such as copiers and in medical equipment and industrial infrastructure. It is also used for high-density wiring such as digital-to-analog conversion, optical communication and audio equipment. It takes up minimal space on the PCB, increases higher sensitivity and accuracy for signal adjustment.

Apart from its space-saving features, it is the only solution that is suitable for different kinds of applications. The resistance range varies from 5Ω to 500kΩ, making it suitable for a variation of products. Applications such as home appliances, audio devices, and precision measuring instrument benefit from its wide range of resistance.

Working Principle

The SM-3TW205 trimmer potentiometers are perfect for low-power applications and testing/measuring systems. The element consists of a cermet resistor and terminal board. The low-power ceramet resistor consists of a large number of thin steps or layers, and the terminal board is made of conductive ink and tinned brass.

The cermet resistor features good resistance stability due to its manufacture with metal material. The terminal board consists of two terminals for inputting current and one terminal for outputting the voltage. Once connected to a power source, the current passes through the elements, and the voltage output is controlled by the number of steps or tracks. This allows the voltage to be predetermined and adjusted accordingly.

The SM-3TW205 features excellent electrical characteristics, which makes it suitable for precision applications. It has a temperature coefficient of 0.10%, a tolerance of ±0.5%, a resistance change rate of ±0.2%, and a maximum rated voltage of 200V. These features allow the device to be used in low-voltage circuits and on power supplies.

Conclusion

In conclusion, the SM-3TW205 trimmer potentiometer is a trusted solution for many applications. Its versatile design with adjustable resistance makes it suitable for a variety of products. Its electrical characteristics are also very reliable. The device is also incredibly small, which makes it very space efficient. All of these features make the SM-3TW205 one of the best trimmer potentiometers in the market.

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