Reference Designator Standards

A reference designator unambiguously identifies a component within an electrical schematic or on a printed circuit board the reference designator usually consists of one or two letters followed by a number e g.

Reference designator standards. The ieee renewed the standard in the 1990s but withdrew it from active support shortly thereafter. Below is a partial list of the reference designations used in electronics. Quickly order your products. For some recent projects we have used to following application of the reference designation system which works has worked reasonably well.

Each project or organisation tends to be unique so this makes some sense. The table says the table below lists designators commonly used and does not comply with the standard the list says component name abbreviations widely used in industry but upvoted for the list standards and the wikipedia references to those standards and others. The iec is fairly open on how you apply reference designations for projects and organisations. Folks it used to be that ieee 200 ansi y32 16 was the governing standard on electrical and electronic reference designators e g.

In order to standardize the way in which components are identified within schematics the ieee introduced a standard ieee 200 1975 as the standard reference designations for electrical. The formulation and application of reference designations for electrical and electronics parts and equipment are covered. R nos for resistors c nos for capacitors l nos for inductors e nos for terminals and antennae etc. The reference designations of this standard are intended for uniquely identifying and locating discrete items on diagrams and in a set as well as for correlating items in a set graphic symbols on diagrams and items in parts lists circuit descriptions and instructions.

Use manual entry bulk upload or copy and paste to enter your product codes and desired quantities enabling ease and efficiency of ordering. Mikromol reference standards for pharmaceutical analysis 2020. Contents show about standard reference designations for electrical equipment can be found published in ansi y32 2 1975 ieee std 315. The number is sometimes followed by a letter indicating that components are grouped or matched with each other e g.

Ieee 200 was ratified in 1975. Standard reference designators a reference designator unambiguously identifies a component in an electrical schematic or on a printed circuit board. January 27 2017 06 46 43 am i roughly follow the tektronix standard these days which is what i learned long ago anyway. Endgroup kevin vermeer feb 17 11 at 19 31.

Vhg aqueous inorganic certified reference materials crms calibration standards.