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I've learnt that for resistors with 5 rings, the first 3 rings indicate the digits of the value.

But here we seem to have (from right to left): brown, violet, silver, gold, green. (The gold ring is not crystal clear on the picture, but it's definitely there.)

So no matter in which direction I read, the 3rd ring is silver -- which does not correspond to any digit!

Am I reading it wrong?

resistor picture

Blacksad
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    Does this answer your question? [Identifying a resistor with a weird band combination](https://electronics.stackexchange.com/questions/406505/identifying-a-resistor-with-a-weird-band-combination) – Tom Carpenter May 10 '20 at 17:29
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    There are quite a few power resistors that are actually 4-band resistors but with an extra 5th temperature coefficient band. So 0.17R 5% 20ppm/K. – Tom Carpenter May 10 '20 at 17:29
  • @TomCarpenter yes! Sorry for the duplicate question.. should I remove it or answer it? – Blacksad May 10 '20 at 17:32
  • @TomCarpenter since you seem to be an expert, may I also ask what power it is (probably)? It's quite big, around 5mm or 6mm diameter. – Blacksad May 10 '20 at 17:34
  • You don't need to delete the question, it'll probably ultimately get closed as a duplicate by the community, but that's no bad thing, it stays as a linked question so if others find it, they can find the related questions. – Tom Carpenter May 10 '20 at 17:36
  • Hard to tell the power rating. But probably 3W or 4W. – Tom Carpenter May 10 '20 at 17:39
  • @TomCarpenter I haven't ever encountered a 3-4 watt resistor looking like that. Obviously, there's no measurement tape there but the wire diameter plus the appearances of the surface burning combine in my mind to suggest a smaller device than can handle that much. If the OP states the size, that will help resolve that question, though. – jonk May 11 '20 at 00:53
  • @jonk in the comments OP said 5-6mm diameter. That puts it in the range of something like [this](https://www.mouser.co.uk/datasheet/2/447/Yageo%20LR_PNP_2013-1097086.pdf) - at 3W or 4W ratings. In practice even if the resistor is lower rated, a replacement with a higher rating would make be no bad thing. – Tom Carpenter May 11 '20 at 07:34
  • @TomCarpenter Wow. Okay. That changes things. – jonk May 11 '20 at 07:46

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There are quite a few power resistors that appear to be 5-band resistors, but are actually read as a 4-band resistor with an extra 5th temperature coefficient band.

This answer to another question gives a nice table.

Based on that, this would appear to be a 0.17Ω 5% 20ppm/K resistor.

Tom Carpenter
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