[Elecraft] SMT kits and Elecraft
Ron D'Eau Claire
rondec at easystreet.com
Tue Aug 10 22:15:01 EDT 2004
Nope. Those are smaller than anything I've used!
Yeah, I'm aware that many (most?) of the numbers I've seen have nothing to
do with any parts I.D. conventions that I know!
As a technical writer I work in metric all the time. I have to convert back
to English more than go the other way.
Most people here don't realize that the standard system of weights and
measures in the USA is metric. We converted by an act of Congress to Metric
over 100 years ago. The problem was that Congress didn't make the old
English system illegal. Still wish they would <G>.
Never say an American can't be stubborn. (Lessee 3/32 inch times 9/16 inch
...ehhhhh...).
Ron AC7AC
-----Original Message-----
Ron
Yeah mostly chip resistors have numbers using standard conventions, except
Rohm/Eurohm who can have a really funky system, don't expect 102 to be 1K
from some of these guys.
But MLC caps 1206 (3.2 x 1.6mm) and below are rarely marked, but depends on
manufacturer, 0805 (2.0 x 1.25mm) have never had markings as far as I
recall. These I would view as big passive parts, excluding chip
electrolytic/tantalums.
Was that your definition of small?, normally we use 0603 (1.6 x 0.8mm) or
0402 (1 x 0.5mm) every day.
No metric comments please ;-), its an affliction but I am used to it.
John (GM1BSG)
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