Trim Pots: Adjust, Tune, and Calibrate Circuits
A trimmer potentiometer, also known as a trim pot, is a type of variable resistor or adjustable potentiometer that can adjust, tune, and calibrate circuits. These trimmer resistors are often used to initially calibrate equipment after manufacturing. TE offers a Citec trimmer potentiometers engineered with radial-leaded or surface mount of various power rating and resistance.
A trimmer potentiometer is meant to never be seen or adjusted by the device’s user. Unlike many other variable controls, trimmer resistors are mounted directly on circuit boards and tuned with a small screwdriver or knob, or will have extended shafts that can be turned by fingers. Trim pots are rated for very few adjustments over their lifetime. A trim pot is often used to initially calibrate equipment after manufacturing. Trim pots are commonly used in A/V components and may require adjustment when the equipment is being serviced.
Thin Film SMD Resistors: Advantages for Your Design
Today’s thin film resistors offer more variations and finer tolerances, enabling designers to achieve more accuracy in resistance value with fewer components. These can also help you save space on printed circuit boards while reducing device weight. Understanding thin film technology is the first step to choosing the right resistor.