resistor 5 band

[jhonar]

my multimeter is damage and i found an open resistor 10ohms .25% 1/2 watt 5 band resistor is it okey to replaced with 4band 10 ohms resistor resistor..

[Andrew F. Ali]

Re: resistor 5 band

What colour bands from left to right are you seeing???

[jhonar]

Re: resistor 5 band

its brown, black, black,gold,and blue

[trebo]

Re: resistor 5 band

the only difference is the tolerance, therefore the 4 band is a better quality resistor that you will be replacing

[selldoor]

Re: resistor 5 band

the only difference is the tolerance, therefore the 4 band is a better quality resistor that you will be replacing

Is that right? he is replacing the 5band 0.25% with a 5% 4 band.

[jhonar]

Re: resistor 5 band

Is that right? he is replacing the 5band 0.25% with a 5% 4 band.

thanks for reply, now i have no more doubt for replacing..

[budm]

Re: resistor 5 band

They may have use tight tolerance due to it is used for current sensing circuit such as the resistor connected to the Source pin of the MOSFET. So you need to find out how this resistor is being used, since it went open, that means the MOSFET or what ever it is connected to is shorted out.

[jhonar]

Re: resistor 5 band

thanks for reply, now i have no more doubt for replacing..

@budm what do you think bro is it ok because i'm wondering because it maybe give me a defferent read out..from my multimeter after replacing...

now im going to buy a resistor 10 ohms 4band to replaced...
thanks for the replies and support..thanks BADCAPS.

[selldoor]

Re: resistor 5 band

Did you understand what Budm said?

In simple terms

Depending on where the resistor is being used it might be important to use one that has .25% tolerance

Testing with your multimeter makes no difference you cant measure tolerance

[jhonar]

Re: resistor 5 band

Thanks.. sir selldoor got it..

[trebo]

Re: resistor 5 band

not sure if I am missing something here, (apologies if I am), but this is how I see it
resistor 10 ohms 25% tolerance = could measure anywhere between 7.5 ohms to 12.5 ohms resistor
resistor 10 ohms 5% tolerance = could measure anywhere between 9.5 ohms to 10.5 ohms resistor
making the 5% tolerance the more accurate resistor
therefore I would replace with a 5% tolerance in place of a 25% tolerance
but would not put a 25% tolerance where a 5% tolerance was
put me out of my misery if I am seeing this wrong
and please tell me where I am going wrong with my view of this

BTW what budm is also saying is that it is probable that if you just replace that resistor it will fail again until you find out what took it down, so check a few things around it, and buy a couple, good luck

[selldoor]

Re: resistor 5 band

Yes you are missing something - a decimal point or 2
Tolerance is nought point two five not twentyfive

[trebo]

Re: resistor 5 band

what a plonker I am
thanks for putting me in the picture
good luck

[budm]

Re: resistor 5 band

OK, it is used in the meter (I missed that in post 1), that is why it is high precision. Even if you put in new resistor, the meter will have to be re-calibrated or check the calibration to see if the meter is still within tolerance.

[selldoor]

Re: resistor 5 band

heheheheheh I missed that as well - didnt realise the resistor was in the meter
must have been badly phrased.

missed in post 8 as well- Budm you did well to pick that up.

[retiredcaps]

Re: resistor 5 band

my multimeter

What brand and model? Sometimes there are schematics for your multimeter?

[Snav]

Re: resistor 5 band

Did you understand what Budm said?

In simple terms

Depending on where the resistor is being used it might be important to use one that has .25% tolerance

Testing with your multimeter makes no difference you cant measure tolerance

It is always important if it's .25% they don't spend $$ if it isn't needed. That being said, another consideration can be thermal coefficient. While you can make your own precision resistor you wouldn't be able to duplicate the thermal coef.

[momaka]

Re: resistor 5 band

Yes you are missing something - a decimal point or 2
Tolerance is nought point two five not twentyfive

That's why many beginner's engineering and science books emphasize to always put a 0 (zero) in front of the decimal point. I've personally seen many fellow students make that mistake (especially when transferring hand-written data into Excel).

[retiredcaps]

Re: resistor 5 band

Tolerance is nought point two five not twentyfive

When I first starting watching eevblog videos, Dave would always say "nought point".

Since I live in Canada, I had no idea what the heck he was talking about. After a while I caught on.