Standard Reference Designators
Printed From: PCB Libraries Forum
Category: Libraries
Forum Name: PCB Libraries Guideline
Forum Description: (online edition)
URL: https://www.PCBLibraries.com/forum/forum_posts.asp?TID=3695
Printed Date: 26 Aug 2026 at 6:43am
Topic: Standard Reference Designators
Posted By: Nick B
Subject: Standard Reference Designators
Date Posted: 15 Aug 2026 at 11:00am
*These class letters would not appear in a parts list as they are part of a PCB and not an active electronic component. **Not a class letter, but commonly used to designate test points for maintenance purposes. Note: The above list is not exhaustive. See the standard list of class designation letters in ANSI Y32.2/IEEE Standard 315.  The Footprint Expert automates footprints to perfection. Professional, detailed, and accurate parts – all built consistently with identical rules, regardless of how many people are involved in your library development. Get your FREE Footprint Calculator or Footprint Expert Evaluation License: https://www.pcblibraries.com/Register" rel="nofollow - https://www.PCBLibraries.com/Register Call us - 847-557-2300 ------------- Stay connected - follow us! https://twitter.com/PCBLibraries" rel="nofollow - X - http://www.linkedin.com/company/pcb-libraries-inc-/" rel="nofollow - LinkedIn |