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Trimmer Potentiometers - 68WFR50KLFTR application field and working principle

Trimmer potentiometers, also known as trimpots, are small variable resistors that are used to set or adjust the values of other components on a printed circuit board. They are generally used to set gain values, time constants, and reference levels. They are also used to attenuate signals, control voltage, reduce current, adjust speed, or provide feedback.

The 68WFR50KLFTR model is a type of trimmer potentiometer manufactured by TDK Corporation. It is 5 mm in diameter and has a total resistance of 50k ohms (kΩ). The body is made of a white plastic, with the resistance adjustment knob located on the top front face. It can be used in a variety of applications, including medical instruments, audio mixers, audio amplifiers, test and measurement equipment, and other electronic projects.

Trimmer potentiometers work by providing a way to adjust a circuit’s resistance value without having to make modifications like soldering. They can be adjusted using a knob or slot on the face of the device. Most trimpots feature three connections: two for the ends of the resistance array and one in the middle for adjustment. A rotating metal shaft is driven by a plastic knob which allows the resistance to be adjusted in small increments.

The TDK 68WFR50KLFTR is a single-turn trimmer potentiometer, with a maximum turn ratio of 1:50. This model features a secure locking mechanism to ensure that the resistance value remains at the desired setting. It also features a moderate power rating of 0.05W at 70°C, and a temperature coefficient of +100ppm/°C, which makes it suitable for use in moderate ambient temperatures.

The TDK 68WFR50KLFTR trimmer potentiometer can be used in a variety of applications including motor control, voltage dividers, or gain control in audio equipment. It offers a wide range of adjustability, allowing users to fine-tune circuits to custom requirements. In addition, its low profile design and narrow terminals make it ideal for space-constrained applications, as well as those with electrical noise requirements.

Overall, the TDK 68WFR50KLFTR is a versatile and reliable trimmer potentiometer that can be used in a variety of applications. Its secure locking mechanism, low profile design, and excellent temperature coefficient mean that it is well suited for reliable performance in moderate ambient temperatures.

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