90PR20KLFTB

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Trimmer Potentiometers are small electrical components used to adjust an electrical resistance in any circuit. They are used in applications where precision and accuracy are essential, for example, in calibrating electronic test equipment. The 90PR20KLFTB type of Trimmer Potentiometer is especially suited for use in a wide range of applications due to its size and robustness.

The 90PR20KLFTB is a 3-terminal trimmer potentiometer with a 20kOhm resistance value. Its terminals are marked with the letters \'A\', \'B\', and \'C\'. \'A\' is the adjustable contact, \'B\' is the fixed contact, and \'C\' is the ground. It has a screw adjustment mechanism which allows the resistance to be adjusted over a range of 0-20 KOhms. It also features an integrated built-in plastic heat-sink which reduces unwanted thermal stress on the part.

The main application of the 90PR20KLFTB trimmer potentiometer is in digital circuits, such as those found in digital audio equipment, digital test benches, and other electronic instruments. It is also commonly used in analog circuits, for example, in audio equalizers, bass and treble controls, and volume controls. It is also used to adjust the time delay in delay circuits, and can be used to adjust the gain of amplifiers or mixers.

The working principle of a trimmer potentiometer is quite simple. A small voltage is applied across the two outer terminals, which causes a current to flow through the resistor. The resistance value can be adjusted by turning the adjusting screw. The more the screw is turned, the higher the resistance value will be, and vice versa. The resistance value of the trimmer potentiometer can also be adjusted by applying a voltage different from the applied voltage across the terminals. This is known as \'auto-tracking\' and is often used in circuits where a precise and repeatable resistance value is required.

The 90PR20KLFTB trimmer potentiometer is a versatile component, used in a wide range of applications. Its small size and robust construction make it ideal for use in applications where precision and accuracy are required, such as in digital and analog circuits. It is also simple to use, with its adjustable screw allowing for quick and easy adjustment of the resistance value.

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