Skip to content
Ohm Bands

Red Green Silver Gold — 0.25 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.

25×0.01±5%
Red2Green5Silver×0.01Gold±5%

Value

0.25 Ω

Range at ±5%

0.2375 Ω – 0.2625 Ω

Standard value

Non-standard

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


What each band says

BandColourMeaning
1Red1st digit — 2
2Green2nd digit — 5
3SilverMultiplier — ×0.01
4GoldTolerance — ±5%

In a circuit

Across 5 V

20 A · 100 W · part

Across 12 V

48 A · 576 W · part

Surface-mount marking for the same value: R25.

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.