1623917-3

Trimmer Potentiometers

Trimmer potentiometers are a type of adjustable resistor device, otherwise known as a variable resistor or trim pot, which functions as a manually adjustable voltage divider. This type of potentiometer, specifically a 1623917-3, works by dividing an input voltage into two outputs - one which is adjustable and maintains a certain ratio in relation to the input voltage. This type of potentiometer is available in both rotary and linear varieties, each of which may be adjusted via a knob or lever on the device.

Application Fields

The 1623917-3 trim potentiometer is commonly used in a wide variety of electrical and electronic applications, including:

• Adjustable voltage divider networks
• Audio and video signal routing and switching circuits
• Printed circuit board (PCB) assembly
• Automotive and aviation systems
• Satellite systems
• Mechanical systems
• Computer systems

Working Principle

The working principle of a 1623917-3 trim potentiometer is based on the principle of a voltage divider, in which the input voltage is shared between two terminals. The resistance of one terminal remains fixed while that of the other is adjustable. The adjustable terminal is known as the "wiper" terminal, and when adjusted, the voltage at the wiper terminal changes, thus changing the voltage ratio between the input and output terminals.

When the wiper is set to its minimum position, the output voltage is equal to the input voltage. As the wiper is rotated, the output voltage is lowered in relation to the input voltage, creating a lower output voltage. This allows the user to adjust the voltage as needed, in order to achieve desired results.

Aside from standard trim potentiometers such as the 1623917-3, there are also specialty types of trim potentiometers available, such as dual-concentric potentiometers, which allow for two wiper terminals to be adjusted simultaneously.