# Help with power resistor markings & value?

Discussion in 'Electronic Basics' started by DaveC, Aug 21, 2004.

1. ### DaveCGuest

Rectangular ceramic power resistor in a Braun handheld blender (120 vac) is
open.

Markings on resistor are:
206-8 R
R47 10% *

(That's 10 percent followed by a dot, in case the
symbol doesn't show up right on your computer...)

I did a Google on resistor markings and values, but got just traditional
color codes, etc. The markings on this resistor are Euro designations, I
presume.

What's the value of this resistor?

URL for future ref would be appreciated.

Thanks,
--

DaveC

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2. ### Michael A. CovingtonGuest

R47 is almost certainly 47 ohms. Don't know how many watts, but match the
physical size of it and you'll come close.

Most certainly 0.47 ohms.

47000000 -> 47M
47000 -> 47k
47 -> 47R
4.7 -> 4R7
0.47 -> R47

4. ### Michael A. CovingtonGuest

Ah! Of course! The R for the decimal point. Thanks.

5. ### Dan RaeGuest

47R certainly would be 47 Ohms. In the Euro style the R indicates the
position of the decimal point, so R47 would more likely be 0.47 Ohms, in
my humble opinion...
dr

6. ### El MedaGuest

The "R" is used sometimes as a decimal point (4R7 = 4.7 ohms) so R47
could be 0.47 ohms. Buy both, try first the one of 47 ohms.

8. ### Peter A ForbesGuest

You are correct, we use 0R47 on our own schematics to reinforce the point, but
R47 will be 0.47 ohms.

Peter

9. ### DaveCGuest

Thank you, Peter, and all others. I'm on my way to buy a 0.47-ohm, 5W
replacement.

Thanks again,
--

DaveC

This is an invalid return address

10. ### Peter A ForbesGuest

If that is the square ceramic cased types, they are a little bulky, but are
slightly higher rated in W than equivalent wirewounds. The standard Vitreous
enamelled 3W and 6W types are a close replacement as long as you don't need the
slightly higher dissipation. The also do a solderable spike for them to allow
vertical mounting with support, which can be useful to keep the heat off the
PCB.

Peter