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Double Segment Polarity Mark

Printed From: PCB Libraries Forum
Category: PCB Footprint Expert
Forum Name: Questions & Answers
Forum Description: issues and technical support
URL: https://www.PCBLibraries.com/forum/forum_posts.asp?TID=251
Printed Date: 06 Oct 2024 at 12:23pm


Topic: Double Segment Polarity Mark
Posted By: RLS2004
Subject: Double Segment Polarity Mark
Date Posted: 29 May 2012 at 5:48pm
If there is room, add a short ss segment to improve visibility of the pin 1 polarity.
 
EG for DIOSC95P205x160x80-4N  Place a short silkscreen line segment, the length of pin 1, just above the upper silkscreen line by pin 1 (like a double line).


Replies:
Posted By: Tom H
Date Posted: 22 Oct 2012 at 9:59am
We have decided that on many component families there is no room for double silkscreen outlines for Polarity Marking.
 
Instead, the new standard is the "Lack of Silkscreen" is the new polarity marker.
 
Can you look at this QFN picture with the physical component installed and tell me where Pin 1 is?
 
 
Nice solution for bottom only terminal parts and micro-miniature packages.
 


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