What are the colors of resistors?

Components and wires are coded with colors to identify their value and function. The colors brown, red, green, blue, and violet are used as tolerance codes on 5-band resistors only. All 5-band resistors use a colored tolerance band.

Correspondingly, what is a resistor color code?

An electronic color code is used to indicate the values or ratings of electronic components, usually for resistors, but also for capacitors, inductors, diodes and others. A separate code, the 25-pair color code, is used to identify wires in some telecommunications cables.

How do you read a resistor color code?


  • Position the resistor with the gold or silver color band to the right..
  • Read the color sequence that must be decoded to determine resistance.
  • Determine the coded number for the resistive value.
  • Determine the tolerance of the resistor.
  • Determine the decoded number for the resistive value.
  • How can we calculate tolerance value of resistors?

    The tolerance band is silver, so we multiply our resistance by 0.1. This means that our resistor’s value can be as high as 16.5 Ω or as low as 13.5 Ω. For the third resistor, we’ll perform the calculation in an alternative way. Take the nominal value and multiply it by 1 + your tolerance, which is (1+0.1).

    What is a resistor used for?

    A resistor is a passive two-terminal electrical component that implements electrical resistance as a circuit element. In electronic circuits, resistors are used to reduce current flow, adjust signal levels, to divide voltages, bias active elements, and terminate transmission lines, among other uses.

    What is the color code for a 4.7 K resistor?

    4k7 / 4.7k ohm Resistor Colour CodeValue4.7 kΩ / 4700 ΩType4 Band Colour CodeColour CodeYellow, Violet, Red, GoldMultiplierRed, 100ToleranceGold Band ±5%

    What is resistor and its use?

    A resistor is an electrical component that limits or regulates the flow of electrical current in an electronic circuit. Resistors can also be used to provide a specific voltage for an active device such as a transistor.

    What color is a 10k resistor?

    10k / 10k ohm Resistor Colour CodeValue10 kΩType4 Band Colour CodeColour CodeBrown, Black, Orange, GoldMultiplierOrange, 1000ToleranceGold Band ±5%

    How does a resistor work?

    Devices called resistors let us introduce precisely controlled amounts of resistance into electrical circuits. Photo: Four typical resistors sitting side by side in an electronic circuit. A resistor works by converting electrical energy into heat, which is dissipated into the air.

    What is the color code for a 220 ohm resistor?

    220R / 220 ohm Resistor Colour CodeValue220 ΩType4 Band Colour Code SystemColour CodeRed, Red, Brown, GoldMultiplierBrown, 10ToleranceGold Band ±5%

    What color is a 330 ohm resistor?

    330R / 330 ohm Resistor Colour CodeValue330 ΩType4 Band Colour Code SystemColour CodeOrange, Orange, Brown, GoldMultiplierBrown, 10ToleranceGold Band ±5%

    Why is there a difference between the measured value and the nominal value of the resistors?

    The actual (measured) resistance will vary from the nominal value due to subtle mechanical and chemical differences that occur during manufacturing. The manufacturer specifies the maximum deviation from the nominal value as a ±percentage. This range of deviation is called the tolerance of the resistor family.

    What is the color code for a 10 ohm resistor?

    10R / 10 ohm Resistor Colour CodeValue10 ΩType4 Band Colour CodeColour CodeBrown, Black, Black, GoldMultiplierBlack, 1ToleranceGold Band ±5%

    What is a resistor made up of?

    Resistor composition. Resistors can be constructed out of a variety of materials. Most common, modern resistors are made out of either a carbon, metal, or metal-oxide film. In these resistors, a thin film of conductive (though still resistive) material is wrapped in a helix around and covered by an insulating material.

    Do resistors have a polarity?

    If I understand your question, then yes – resistors are reversible, in the sense that they can be connected to the circuit in either direction. Resistors are not like diodes or capacitors. They do not have a polarity. The conduct (or resist) current equally in both directions of current flow.

    What is the color code for a 100 ohm resistor?

    100R / 100 ohm Resistor Colour CodeValue100 ΩType4 Band Colour Code SystemColour CodeBrown, Black, Brown, GoldMultiplierBrown, 10ToleranceGold Band ±5%

    What is the use of a carbon resistor?

    Carbon Resistors. The most common type for electronics use is the carbon resistor. They are made in different physical sizes with power dissipation limits commonly from 1 watt down to 1/8 watt. The resistance value and tolerance can be determined from the standard resistor color code.

    How do you measure resistance?

    Method 1 Measuring Resistance with a Digital Multimeter

  • Choose the item whose resistance you wish to measure.
  • Plug the test leads into the correct test sockets.
  • Turn on the multimeter and select the best testing range.
  • Touch the multimeter leads to the ends of the component you are testing.
  • Turn off the multimeter.
  • What is meant by the tolerance of a resistor?

    “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.” Source: Resistor Color Codes.

    What is the color code for a 100k ohm resistor?

    100k / 100k ohm Resistor Colour CodeValue100 kΩType4 Band Colour Code SystemColour CodeBrown, Black, Yellow, GoldMultiplierYellow, 10000ToleranceGold Band ±5%

    What is Colour coding in safety?

    Safety Color Coding Labels and TapeCOLORMEANINGFluorescent Orange, Orange-RedBiosafetyYellowCautionOrangeWarningGreenSafety

    What is tolerance in technical drawing?

    Engineering tolerance is the permissible limit or limits of variation in: a physical dimension; a measured value or physical property of a material, manufactured object, system, or service; in mechanical engineering the space between a bolt and a nut or a hole, etc..

    What is MMC and LMC?

    MMC is the condition of a feature which contains the maximum amount of material, that is, the smallest hole or largest pin, within the stated limits of size. LMC is the condition in which there is the least amount of material, the largest hole or smallest pin, within the stated limits of size.

    What is difference between tolerance and allowance?

    Tolerance is the limit of random (unintentional) deviation of a dimension from its nominal value. Allowance is the amount of designed (intentional) deviation between two mating dimensions in a fit, which, in combination with their respective tolerances, results into a maximum and minimum clearance or interference.