The color of the second band indicates the value of the second significant digit. The color of the first band indicates the value of the first significant digit. Q.In the standard resistor color code system, four bands are painted on the resistor. Examples for 5 band color code:ġ) If the bands on the body of the resistor are red, red, black, orange and gold then the register value is 220 *10^3 and its tolerance is 5% that is 220 kΩ+- 5%Ģ)The register of value 470*10^6 Ω+- 20% will have the colour code yellow, violet, black, blue and 5th band will be absent. The significance of the resistor colour is as shown in the table:ġ) If the bands on the body of the resistor are red, red, orange and gold, then the register value is 22 *10^3 and its tolerance is 5% that is 22 kΩ +- 5%Ģ) If the band on the body of the resistor is brown, black, Brown and silver then the register value is 10*10^1 Ω and its tolerance is + – 10% that is 100Ω + – 10%. This shows the value of resistance lies between 90Ω and 110 Ω.ģ) The register of value 47*10^6 Ω+- 20% will have the colour code yellow, violet, blue and 4th band will be absent. If the 4th band is absent the tolerance will be 20%.( in case of 5 band resistor take it as 5th band) The 3rd band in the case of 4 band resistor band represents the multiplier ( and 4th band in case of 5 band resistor represents the multiplier). The 1st and 2nd band represent ( and 3rd in case of 5 band resistor ) significant digits respectively. The coloured bands are read from left to right from the lead that has band close to it. The reason for this is the value of the register for high-end usage in modern industries and manufacturing. The resistor has four colored bands or rings printed on the outer casing as shown in the figure:īut nowadays register also has five colour band on its outer casing.
The colour code of the resistor indicates the value of resistance and its percentage reliability for tolerance.
The other types of resistors are carbon film resistors, metal film resistors, and wire-wound resistors. Such registers are called carbon composition resistors. Resistors are made from a mixture of carbon black or powdered graphite clay and resin binder the mixture is molded into the rods by compression or heating and then wire leads are fixed at the ends. 1k ohm resistor color code If you want to determine the value of any resistor then below are the steps to do it the easy way (color code of resistors):
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