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Ohm Bands

Brown Red Black Gold — 12 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.

12×1±5%
Brown1Red2Black×1Gold±5%

Value

12 Ω

Range at ±5%

11.4 Ω – 12.6 Ω

Standard value

E12

Full page for 12 Ω →


What each band says

BandColourMeaning
1Brown1st digit — 1
2Red2nd digit — 2
3BlackMultiplier — ×1
4GoldTolerance — ±5%

In a circuit

Across 5 V

417 mA · 2.08 W · 5 W part

Across 12 V

1 A · 12 W · part

Surface-mount marking for the same value: 120.

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.