PCB Libraries Forum Homepage
Forum Home Forum Home > PCB Footprint Expert > Questions & Answers
  New Posts New Posts RSS Feed - Double Segment Polarity Mark
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

Double Segment Polarity Mark

 Post Reply Post Reply
Author
Message
RLS2004 View Drop Down
Advanced User
Advanced User


Joined: 26 Jan 2012
Location: Seattle,WA
Status: Offline
Points: 51
Post Options Post Options   Thanks (0) Thanks(0)   Quote RLS2004 Quote  Post ReplyReply Direct Link To This Post Topic: Double Segment Polarity Mark
    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).
Back to Top
Back to Top
Tom H View Drop Down
Admin Group
Admin Group
Avatar

Joined: 05 Jan 2012
Location: San Diego, CA
Status: Offline
Points: 5716
Post Options Post Options   Thanks (0) Thanks(0)   Quote Tom H Quote  Post ReplyReply Direct Link To This Post 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.
 
Back to Top
 Post Reply Post Reply

Forum Jump Forum Permissions View Drop Down



This page was generated in 0.172 seconds.