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Ohm Bands

Orange Violet Brown Gold — 370 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.

37×10±5%
Orange3Violet7Brown×10Gold±5%

Value

370 Ω

Range at ±5%

351.5 Ω – 388.5 Ω

Standard value

Non-standard

No E24 part carries this value — check you are reading from the right end.


What each band says

BandColourMeaning
1Orange1st digit — 3
2Violet2nd digit — 7
3BrownMultiplier — ×10
4GoldTolerance — ±5%

In a circuit

Across 5 V

13.5 mA · 67.6 mW · 1/4 W part

Across 12 V

32.4 mA · 389 mW · 1 W part

Surface-mount marking for the same value: 371.

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.