Re: Please clarify European resistor value notation for me

On Tue, 05 Dec 2006 20:01:03 GMT, Joerg
<notthisjoergsch@xxxxxxxxxxxxxxxxxxxxx> wrote:

Jim Thompson wrote:

On 5 Dec 2006 11:01:27 -0800, "Mike Noone" <nleahcim@xxxxxxxxx> 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?

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

-Mike


"Periods" have a way of fading away from paper drawings :-(


Not so much anymore but it sure was a problem with the old plotters.
Especially when the pens had been in there a while.


Apparently OrCAD Capture has added this feature.


That's why it is important that a CAD system can be set to fixed width
font. Mine can do both. With fixed at least you can see that something
must be missing.

Just imagine a missing dot on a 2.2ohm inrush limiter and someone puts a
22ohm in there. Click - POOF.

The way I work a missing dot would get caught at LVS (layout versus
schematic), the netlists wouldn't match.

...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona Voice:(480)460-2350 | |
| E-mail Address at Website Fax:(480)460-2142 | Brass Rat |
| http://www.analog-innovations.com | 1962 |

I love to cook with wine. Sometimes I even put it in the food.
.

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