[sdiy] silly inductor question

Neil Johnson nej22 at hermes.cam.ac.uk
Wed Jan 30 17:35:35 CET 2002


Roman,

> I'm only wondering how would be marked inductor smaller than 1uH, but
> OTOH I never seen those marked at all

Yep, after some more hunting on the web
(try http://www.venkel.com/mlf_series.htm)
it looks like the following is the correct scheme:

'R' indicates uH
'N' indicates nH

so '47N' would be 47nH, '4R7' would be 4.7uH

and the 2nd letter is tolerance as before ('K' = 10%)

I don't know if this is standard, but looks possible.  Check out their
datasheet, the first page details their part numbering scheme.

Also, for really small inductors coloured dots are used instead.  Check
out CoilCraft for details (http://www.coilcraft.com)

Neil

--
Neil Johnson :: Computer Laboratory :: University of Cambridge ::
http://www.njohnson.co.uk          http://www.cl.cam.ac.uk/~nej22
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