Brown Black Brown Gold — 100 Ω

Read left to right, starting from the end where the bands are grouped. The gold band is the tolerance and always sits alone at the far end.

What each band says

In a circuit

Surface-mount marking for the same value: 101.

If you misread one band

Brown and red, or orange and red, are easy to confuse under a desk lamp. These are the codes one band away from this one.

• Brown Black Black10 Ω
• Brown Black Red1 kΩ
• Brown Black Orange10 kΩ
• Brown Black Gold1 Ω
• Brown Brown Brown110 Ω
• Brown Red Brown120 Ω
• Brown Orange Brown130 Ω
• Brown Yellow Brown140 Ω