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Ohm Bands

Violet Violet Silver Gold — 0.77 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.

77×0.01±5%
Violet7Violet7Silver×0.01Gold±5%

Value

0.77 Ω

Range at ±5%

0.7315 Ω – 0.8085 Ω

Standard value

Non-standard

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


What each band says

BandColourMeaning
1Violet1st digit — 7
2Violet2nd digit — 7
3SilverMultiplier — ×0.01
4GoldTolerance — ±5%

In a circuit

Across 5 V

6.49 A · 32.5 W · part

Across 12 V

15.6 A · 187 W · part

Surface-mount marking for the same value: R77.

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.