Reference Designators

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Article #21082

#21082

From: Fred Fierling
Date: Wed, 05 Apr 1989 23:18

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I've never seen a standard for the system used by most electronic draftsman
to reference symbols on schematics.  Does anyone know why IC's, resistors,
capacitors, and diodes have reference designators like U1, R1, C1, and D1?

If this is a standard can someone tell me which standards organization
publishes it?

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Fred Fierling    Tel: 604 875-1461   Microplex Systems Ltd, 265 East 1st Avenue
uunet!mplex!fff  Fax: 604 875-9029   Vancouver, BC, V5T 1A7, Canada

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!csd4.milw.wisc.edu!lll-winken!uunet!mplex!fff
From: fff@mplex.UUCP (Fred Fierling)
Newsgroups: sci.electronics
Subject: Reference Designators
Keywords: schematics, reference designators
Message-ID: <270@mplex.UUCP>
Date: 5 Apr 89 23:18:45 GMT
Distribution: na
Organization: (RFM) Microplex Systems Ltd
Lines: 10