Re: Please clarify European resistor value notation for me

On Tue, 05 Dec 2006 20:25:58 +0100, HKJ <henrik.k.jensen@xxxxxxxxx>
wrote:

Mike Noone wrote:
Hi - Can somebody please verify that my understanding of European
resistor value notation is correct? My understanding is that the
magnitude (K/M) replaces the period, so 1K = 1K0, 1.2K = 1K2, 15M =
15M0. Also, when there isn't a magnitude (value under 1K) then an R is
added to the end - so 500 ohms = 500R, 10 ohms = 10R.

Is this all correct?

Yes
But your do not need to write 1K0 or 15M0, just 1K or 15M is ok.

Why are there two different notation schemes? To me the European
version seems unnecessarily complicated. I just don't see a need for
it.

Maybe the reason for this notation is because it is easy to overlook a .
on a dirty schematic drawing.

Here in the USA, we keep our schematics clean.

John

.

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