All About Circuits Forum  

Go Back   All About Circuits Forum > Electronics Forums > The Projects Forum


The Projects Forum Working on an electronics project and would like some suggestions, help or critiques? If you would like to comment or assist others with their projects, this is the place to do it.

Reply   Post New Thread
Thread Tools Display Modes
Old 10-05-2009, 07:48 PM
steinar96 steinar96 is offline
Senior Member
Join Date: Apr 2009
Posts: 239
Default Need advice: Routing copper trace width

Hey, i'm in need of a rule of thumb when choosing the width for 1oz copper during PCB layout. I'm routing a pcb which is used in a 12W linear regulator.

I used to know about a rule which stated that for every amper going trough the trace you needed aprox x many mil of copper width. atm i can't remember what it was. So i was hoping some of you knew it or had suggestions.

The trace needs to carry a maximum of 1A. The copper i have is 1 oz.

Any help appreciated.
Reply With Quote
Old 10-05-2009, 08:11 PM
StayatHomeElectronics's Avatar
StayatHomeElectronics StayatHomeElectronics is offline
Senior Member
Join Date: Sep 2008
Location: NE Ohio, USA (GMT - 5)
Posts: 787

I've found this to be a useful site.

It is a trace width calculator that goes by the current IPC-2221 (formerly IPC-D-275). I have used the IPC specifications for boards for many PCBs.
Reply With Quote
Old 10-05-2009, 08:30 PM
steinar96 steinar96 is offline
Senior Member
Join Date: Apr 2009
Posts: 239

thanks, very helpfull tool.
Reply With Quote
Reply   Post New Thread

, , , ,

Related Site Pages
Section Title
Worksheet Printed circuit board layout and manufacture
Worksheet Electrical connections
Video Lecture System Connectivity - Electronic Systems

Similar Threads
Thread Thread Starter Forum Replies Last Post
DIY PCBs with 10mil/0.25mm trace width and hole clearance? DaveH General Electronics Chat 18 08-05-2009 04:10 PM

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT. The time now is 10:29 PM.

User-posted content, unless source quoted, is licensed under a Creative Commons Public Domain License.
Powered by vBulletin
Copyright ©2000 - 2014, vBulletin Solutions, Inc.