The last bands in 4/5 th bands resistors shows the tolerance value of the resistor. The next 2nd digit is ‘ 2 ‘, ∴ look for color in a chart with value 2, then it’s your 2nd color (say red). Thus, for 2.2k ohm resistor, 1st digit is ‘ 2 ‘, ∴ look for color in a chart with value 2, then it’s your 1st color(say red). Orange What does a 2.2 K resistor look like? The purpose of the resistor is to “drop” voltage that is not required to operate the LED, when the LED is operating at the desired current. What color is a 100 ohm resistor?ģ30 ohms may be used by some people as a “get you going” value that works “well enough” in many cases. The blue-bodied resistors and the dark brown resistor contain metal-oxide film elements, while the beige-bodied resistors and the green resistor contain carbon film. The beige-colored body of a resistor is often an indication that its tolerance is 5%, while a blue-colored body often indicates a tolerance of 1% or 2%. The colors brown, red, green, blue, and violet are used as tolerance codes on 5-band resistors only.
Resistor Color Coding uses colored bands to quickly identify a resistors resistive value and its percentage of tolerance with the physical size of the resistor indicating its wattage rating. A gold tolerance band is 5% tolerance, silver is 10%, and no band at all would mean a 20% tolerance. Tolerance Band 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.
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