How can find Resistor Value

Hi everyone,

Now I am going to write an article about how to find Resistor value from the given resistors color coding..

How to Use the Resistor Color Code Calculator

Are you having trouble reading resistor color codes? If your answer is yes, this tool is specifically designed for you! Our Resistor Color Code Calculator is a handy tool for reading carbon-composition resistors, whether it's a 4 band, 5 band, or 6 band type.

BAND? DIGITS

4 1st,2nd,Multiplier& Tolerance

5 1st,2nd,3rd, Multiplier& Tolerance

6 1st,2nd,3rd, Multiplier& Tolerance,Tempco

To use this tool, simply click on a particular color and number and watch how the actual bands on the resistor illustration change. The resistance value is displayed on the field below, together with the tolerance and the temperature coefficient.?

https://www.allaboutcircuits.com/tools/resistor-color-code-calculator/

Resistor Color Bands

As shown above, a carbon-composition resistor can have 4 to 6 bands. A 5-band resistor is more precise than a 4-band type because of the inclusion of a third significant digit. A 6-band resistor is like a 5-band resistor but includes a temperature coefficient band (the 6th band). Below (Table 1), you can see an overview of the different band types.

1. Resistor colors and values

BBROYGBVGW-0123456789

BB ROY GREAT BRITAIN VERY GOOD WIFE –Easy to remember

Black (2nd and 3rd bands only)

2.Resistor colors and value multiplier.

Value

x1

x10

x100

x1000

x10000

x100000

x1000000

x10000000

x100000000

x1000000000

?

3.Resistor colors and tolerance values, including gold and silver.

Color? ??????????? Value

Black- ???????????? ?N/A

Brown ??????????? ±1%

Red???? ??????????? ±2%

Orange??????????? ±3%

Yellow??????????? ? ±4%

Green? ??????????? ±0.5%

Blue???? ??????????? ±0.25%

Violet? ??????????? ±0.10%

Grey??? ??????????? ±0.05%

White? ??????????? N/A

Gold??? ??????????? ±5%

Silver? ??????????? ±10%

?

4. Resistor color and temperature coefficients.

Color? ??????????? Value

Black?? ??????????? ???N/A

Brown ??????????? ??100 ppm/oC

Red???? ??? ??????? 50 ppm/oC

Orange??????????? 15 ppm/oC

Yellow??????????? ? 25 ppm/oC

Green? ??????????? N/A

Blue???? ??????????? 10 ppm/oC

Violet? ??????????? 5 ppm/oC

Grey??? ??????????? N/A

White? ??????????? N/A

Resistor Color Code Exceptions

5 Band Resistor With the 4th Band of Gold or Silver

All 5 band resistors with the 4th band of silver or gold form an exception and are utilized on specific or older resistors.

1.????? The first two bands represent the significant digits,

2.????? 3rd band is a multiplication factor

3.????? 4th band is for tolerance,

4.????? 5th band is for the temperature coefficient (ppm/K).

Deviating Resistor Band Colors

To prevent metal and other particles from getting in the coating of high-voltage resistors, the gold and silver bands are often replaced with yellow and gray bands.

Single Black Resistor Band or Zero Ohm Resistor

·???????? A single black band on a resistor is called a zero-ohm resistor.?

·???????? it is a wire link used to connect traces on a printed circuit board (PCB) that is packaged in the same physical package format as a resistor.

·???????? This packaging allows the zero-ohm resistor to be placed on the circuit board using the equipment typically used to place other resistors.

Resistance Reliability Band

·???????? When resistors are produced per military specifications, will include a band that indicates reliability.

·???????? It is specifically for failure rate percentage per 1000 hours of service.

·???????? It is rarely used in commercial electronics.

·???????? In addition, 4 band resistors typically use this reliability band.