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Ohm Bands

Orange Orange Silver Gold — 0.33 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.

33×0.01±5%
Orange3Orange3Silver×0.01Gold±5%

Value

0.33 Ω

Range at ±5%

0.3135 Ω – 0.3465 Ω


What each band says

BandColourMeaning
1Orange1st digit — 3
2Orange2nd digit — 3
3SilverMultiplier — ×0.01
4GoldTolerance — ±5%

In a circuit

Across 5 V

15.2 A · 75.8 W · part

Across 12 V

36.4 A · 436 W · part

Surface-mount marking for the same value: R33.

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.