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Ohm Bands

Grey Brown Silver Gold — 0.81 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.

81×0.01±5%
Grey8Brown1Silver×0.01Gold±5%

Value

0.81 Ω

Range at ±5%

0.7695 Ω – 0.8505 Ω

Standard value

Non-standard

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


What each band says

BandColourMeaning
1Grey1st digit — 8
2Brown2nd digit — 1
3SilverMultiplier — ×0.01
4GoldTolerance — ±5%

In a circuit

Across 5 V

6.17 A · 30.9 W · part

Across 12 V

14.8 A · 178 W · part

Surface-mount marking for the same value: 0R8.

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.