Color code resistance comprehensive identification method - Database & Sql Blog Articles

The resistor is represented by the letter "R" and its unit is ohm (Ω). When the value is high, it is commonly expressed in kilohms (kΩ) or megohms (MΩ), where 1 kΩ equals 1000 Ω and 1 MΩ equals 1,000,000 Ω. The marking on resistors can be done using numerical notation or color codes.

● Resistor Marking

Resistance Color Code Recognition

Color

Black

Brown

Red

Orange

Yellow

Green

Blue

Purple

Gray

White

Gold

Silver

Colorless

First Digit

0

1

2

3

4

5

6

7

8

9

Second Digit

0

1

2

3

4

5

6

7

8

9

Multiplier (10^x)

0

1

2

3

4

5

6

7

-1 (/10)

-2 (/100)

Tolerance

±5%

±10%

±20%

Resistance Color Code Below 1%

Color

Black

Brown

Red

Orange

Yellow

Green

Blue

Purple

Gray

White

Gold

Silver

First Digit

0

1

2

3

4

5

6

7

8

9

Second Digit

0

1

2

3