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BRIEF DEFINITION OF VARIABLE RESISTOR PRODUCTS |
| TRIMMING POTENTIOMETERS
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| Trimming potentiometers, or trimmers, are generally used to trim
resistance in electronic circuits and are usually mounted on a printed
circuit board. The resistance element may be wirewound, carbon, or cermet.
Configuration may be multi-turn square, multi-turn rectangular, or single
turn. The construction may be sealed, semi-sealed, or open. These units
may be leaded or surface mount types.
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| PRECISION POTENTIOMETERS
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| Precision potentiometers are those having linearity equal to or
better than plus or minus 1%. The resistance element may be wirewound or
non-wirewound. The configuration may be single turn, multi-turn, ganged,
or translatory.
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| PANEL POTENTIOMETERS - INDUSTRIAL GRADE
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| Industrial Grade Panel Potentiometers are normally mounted on a panel by means of a threaded bushing and mounting nut; however, they may also be mounted directly on a PC board by the terminals. Resistance Tolerance is typically plus or minus 5 to 30%. Independent Linearity is plus or minus 5% or greater. Rotation is typically 300 degrees, plus or minus 50 degrees; however, some units with vernier drives may have a greater rotation. |