Vishay resistor query - Red Black Gold Gold?

[hifi_geek]

Hi all,

I have searched everywhere but to no avail, so I am hoping that one of you can assist.

I need a replacement resistor for a project I am working on, and the coloured bands are red, black, gold and gold. I will upload a pic shortly, but in the meantime can anyone tell me where I can find the exact type? I know it's a Vishay but there are hundreds.

Thanks.

 

[hifi_geek]

 

[kellys_eye]

2Ω 5% - without some comparison for scale it looks like a 1/4 watt device, maybe 1/2 watt.

why do you want an 'exact' replacement?

 

[BobK]

I saw what you did

Agree now, 2Ω.

Bob

 

[BobK]

Can't tell you how many times I have done a quick correction like that!

Bob

 

[kellys_eye]

Ditto - relying on 'instinct' doesn't work as often as it used to. Old age setting in......

 

[hifi_geek]

Thanks guys. Reason I asked is that some chaps on a different forum thought it was a 200 ohm version as it’s powering LEDs. But as you say the calcs bring it out as a 2 ohm one.

Ok so I got these, do you think they will suffice given the tolerance is not quite correct?

 

[hifi_geek]

Also the resistor is the same size in terms of scale as the one in the bottom photo as you can see it’s small! Thanks.

 

[kellys_eye]

The tolerance you actually have is better than what you're replacing it with - not highly important but better than a 'worse' tolerance.... so yes, use it.

 

[hifi_geek]

The tolerance you actually have is better than what you're replacing it with - not highly important but better than a 'worse' tolerance.... so yes, use it.

So you mean the new one (1%) would be better than the existing, or the other way around?

If anyone can post a link to a suitable or even the exact match that would be great. Thanks fellas.

 

[kellys_eye]

1% is better than 2% is better than 5% is better than 10% etc

If it is, as you say, a current limit for an LED then you can ignore the tolerance all together..... it won't make a blind bit of difference.

 

[hifi_geek]

1% is better than 2% is better than 5% is better than 10% etc

If it is, as you say, a current limit for an LED then you can ignore the tolerance all together..... it won't make a blind bit of difference.

Ok thanks. And with regard to the wattage, I assume there is no way to calculate this without testing the resistor using a multimeter?

Basically this board runs a small series of LED arrays to illuminate a logo.