Trimmer Potentiometers

Trimmer Potentiometers, also known as Trim Pots, are tiny variable resistors that are used to adjust and fine-tune electronic circuits. This article will discuss the application field and working principle of 3266Y-1-502LF, a type of trimmer potentiometer.

Application Field

3266Y-1-502LF is especially suitable for the adjustment of small power electronic circuits, and is typically used in audio and communication equipment. It is also widely used for adjustment in medical instruments, digital computer system, factory assembly and other industrial control systems. Such applications can be found in cable television systems, photographic equipment, automatic measuring instruments, and micro-devices.

Working Principle

3266Y-1-502LF consists of a resistive element, a rotary motion component, and a pin-shaped output terminal. The resistive element is a three-terminal variable resistor, consisting of a wiper changing two ends of the track resistor. When the rotation component is turned, the wiper can be moved up and down along the entire track resistor, so as to change the resistance between two ends of the resistor or between any two pins of the output terminal. As the resistance changes, the output voltage will also change accordingly.

3266Y-1-502LF has a total resistance of 502Ω, and its nominal working power is 0.25W. The total resistance is kept consistent whether the wiper changes position, and the track resistor has a temperature coefficient of 0.05%. This enables it to be excellent for use in circuits with a wide temperature range.

Conclusion

3266Y-1-502LF is a type of trimmer potentiometer that is suitable for the adjustment of small power electronic circuits. Its application field includes audio and communication equipment, medical instruments, digital computer systems, and factory assembly. The working principle involves a three-terminal resistor, a rotary motion component and a pin-shaped output terminal. 3266Y-1-502LF has a total resistance of 502Ω, and it is characterized by excellent temperature coefficient stability.