357 B 0 5K 20% X BO50 1P22 E4
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39131567-357 B 0 5K 20% X BO50 1P22 E4
CONDUCTIVE PLASTIC POTENTIOMETER,5KOHM, 20%, 1W
The resistance-change factor per degree Celsius of temperature change is called the temperature coefficient of resistance. This factor is represented by the Greek lower-case letter “alpha” (α). A positive coefficient for a material means that its resistance increases with an increase in temperature.
Tolerance is the percentage of error in the resistor's resistance, or how much more or less you can expect a resistor's actual measured resistance to be from its stated resistance. A gold tolerance band is 5% tolerance, silver is 10%, and no band at all would mean a 20% tolerance.