3361P-1-202G

Trimmer potentiometers are electrical devices used to control and adjust the resistance in a circuit. They come in various sizes and configurations and have many applications in numerous industries. The 3361P-1-202G is an example of a trimmer potentiometer. It is a standard size, two-section, multi-turn trimmer, often used in radio frequency (RF) applications for fine-tuning connections and testing circuits. In this article, we will discuss the various application fields and the working principle of the 3361P-1-202G trimmer potentiometer.

Application Fields

Trimmer potentiometers are extensively used in both commercial and personal applications. The 3361P-1-202G is a small-size trimmer and is most often used as a replacement part in electronic circuit boards. It is also very popular for use in audio systems, radio tuners, test equipment, receivers, amplifiers, televisions and other home and professional audio/video appliances. The 3361P-1-202G has a wide range of temperature operational range and is quite reliable when used in a variety of environments as it can operate from temperatures in the range of -20°C to +85°C.

The 3361P-1-202G is also used as a precision adjustment device in data acquisition systems. Its low-noise characteristics make it suitable for noise-sensitive applications such as digital to analog converter systems. Additionally, it can be used in data signal generators, transceivers and in oscillators. As the 3361P-1-202G can provide both coarse and fine adjustments, it is also suitable for use in AGC (Automatic Gain Control) circuits.

Working Principle

The 3361P-1-202G is a two-section, multi-turn trimmer, meaning it has two independent sections: one a knob with a threaded shaft, and the other a rotating shaft connected to a rotary dial. The two sections are used to control the resistance value of the trimmer. The rotary knob is used to adjust the resistance coarsely, while the rotating dial is used for finer adjustments.

To adjust the resistance, the user must rotate either the knob or the dial. The knob and the dial rotate in opposite directions, meaning that when one is rotated clockwise, the other is rotated counter-clockwise. This allows for finer and more accurate adjustments of the resistance values. Usually, the turning ratio of the knob and the dial is 2:1.

The 3361P-1-202G also features a long-life and reliable dual-wafer track for impedance matching. The dual-wafer track is a combination of two 10-turn tracks which are connected together. This allows the trimmer to maintain a high degree of accuracy and stability when adjusted.

Conclusion

The 3361P-1-202G is a trimmer potentiometer suitable for multiple fields and applications including audio systems, radio tuners, test equipment, receivers, amplifiers, televisions, data acquisition systems and more. It features a long-life and reliable dual-wafer track for impedance matching and its two sections are used to control its resistance value. It is a small and versatile trimmer with a wide range of temperature operational range and can be used for both coarse and fine adjustments.