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Topic:Kt Kingtronics Tells You Trimming Potentiometers's General Electrical Characteristics Ⅰ
Content:
TOTAL RESISTANCE: (Rt)The dc resistance between the input terminals with the wiper positioned to either end stop, or in dead band for continuous rotation potentiometers.ABSOLUTE MINIMUM RESISTANCE: (Rm)The resistance measured between the wiper terminal and each end terminal with the wiper positioned to give a minimum value.END RESISTANCE: (Re)The resistance measured between the wiper terminal and an end terminal when the wiper is positioned at the corresponding end of mechanical travel.Absolute minimum resistance and end resistance are synonymous for continuous rotation trimmers.TEMPERATURE COEFFICIENT OF RESISTANCE: (TC)The unit change in resistance per degree celsius change from a reference temperature, expressed in parts per million per degree celsius as follows:Where:R1 = Resistance at reference temperature in ohmsR2 = Resistance at test temperature in ohmsT1 = Reference temperature in degrees celsiusT2 = Test temperature in degrees Celsius
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