91TR20KLF

Trimmer Potentiometers

The 91TR20KLF trimmer potentiometer is an electrical component that is used to adjust the resistance of a circuit and can be used in a few different ways. The component can be used to balance circuits, set the gain of amplifiers, tune radio circuits, and also are used as a voltage response control. The 91TR20KLF is a surface-mount trimmer pot that can be employed in an array of applications.

Application Areas

The 91TR20KLF trimmer pot can be applied in a variety of fields, such as telecommunications, automotive, medical, and aerospace. It is often used in radio circuitry to adjust the amount of feedback, or the amount of signal input and output. In radio circuits, the 91TR20KLF is frequently used as an AM/FM radio receiver adjustment. Additionally, trimmer potentiometers are also used in telecommunications for general signal and frequency tuning tasks.

Other application fields include automotive where it is used to set the voltage output for common control applications like gas level indicators and cruise control. It is also used in medical equipment to adjust servo motor velocity. Lastly, it is often used in aerospace and military applications to precisely set the electric potential on electrical circuits.

Working Principle

Trimmer potentiometers are basically variable resistors that are manually adjustable by rotating a screw. The electrical potential input goes into the terminals of the 90TR20KLF trimmer pot, and when the screw is turned in either direction the resistance between the two terminals will vary. Once adjusted, the device can be used to match complex impedances or provide the variables for active filter circuits.

The 91TR20KLF trimmer potentiometer is adjustable with a 3mm slotted screwdriver and has a maximum power rating of 0.5W. It also features a dielectric strength of 300V, isolation resistance of 1000MΩ at DC 100V, and rotational angle of 300°. The pot has a rated resistance range of 20KΩ, and its temperature coefficient of resistance (TCR) is ±200ppm/°C. Even though the dimensions of the 91TR20KLF are compact, it offers a high degree of precision.

Conclusion

The 91TR20KLF trimmer pot is a versatile and reliable electronic component that can be used for a variety of applications and is also widely used as a voltage response control. Adjustments can be made using a 3mm slot screwdriver, and it offers a high degree of precision due to its small size. It is suitable for fields such as telecommunications, automotive, aerospace, and medical.