Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Parts Where to get, and how to make the best bits. PCB's, caps, transformers, etc.

Eagle layout and package types
Eagle layout and package types
Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Thread Tools Search this Thread
Old 23rd October 2006, 01:21 AM   #1
rtarbell is offline rtarbell  United States
diyAudio Member
Join Date: Sep 2005
Default Eagle layout and package types

I am trying to lay out a simple board using Eagle; the board uses all discrete components. Is there a website or reference that shows the basic package names and corresponding pictures for different capacitor types? Eagle has so many packages for surface mount (which I don't want), and I'm worried that the scale will be wrong when I get the finished product if I choose the wrong capacitor parts in the layout.
  Reply With Quote
Old 23rd October 2006, 02:25 AM   #2
singa is offline singa  Singapore
diyAudio Member
Join Date: Apr 2004
Location: near
Send a message via AIM to singa Send a message via MSN to singa Send a message via Yahoo to singa
I have tried the evaluation version of eagle.THe "Discrete"library" has the standard parts you need.I refering to the schematic capture part of eagle.When you pick a part it also give the package details.When you use the pcb layout ,the part selected also show package details.The help file should be useful.One hint of type is the spacing/pitch of center holes or smt pads.
  Reply With Quote
Old 23rd October 2006, 02:50 AM   #3
BWRX is offline BWRX  United States
diyAudio Moderator Emeritus
BWRX's Avatar
Join Date: Jan 2005
Location: Pennsylvania
The general process starts with knowing what parts you want to use, seeing what packages the parts are available in, then choosing the package you want to use. This is easier for surface mount parts because passive components generally come in standard sizes: 0603, 0805 etc. For through hole resistors you have to go by body size and lead spacing. For caps you go by lead spacing and body diameter.

It usually takes time and a lot of browsing through data sheets to learn about all the different types of packages out there. What's worse is when you run across a package with the same footprint that has a different name... but those are usually more specialized parts.
  Reply With Quote
Old 27th October 2006, 01:29 AM   #4
dougmorse is offline dougmorse  United States
diyAudio Member
Join Date: Oct 2006
Eagle User

In my experience, it is totally necessary to just learn to make all the parts needed to make a complete component. This means that you need to go to the manufacturer's website, or wherever , to get the mechanical dimensions of the parts, and create a "Package". It may be that eagle has a bunch, but it seems like I only go a little way before I need to make my own complete components.

I haven't been making PCBs lattely, but when I was , I was using PCBExpress.com. And they now offer a free CAD program, which I would probabaly learn, rather than start with Eagle.
  Reply With Quote
Old 27th October 2006, 06:56 PM   #5
lgreen is offline lgreen  United States
diyAudio Member
lgreen's Avatar
Join Date: May 2003
Location: San Diego, USA
Default Eagle

You have to find the right library "discrete" is usually the best. then you have to look at the data sheet for the parts or digikey/mouser page to confirm that the dimensions and hole spacings of the package match your parts. You even have to check lead thickness! Sometimes my caps have bigger leads than the holes allow for.

Or else you can measure your parts with a micrometer and measure the board parts with the cursor to see that they will fit.

Yes its kind of a pain until you know which footprints fit which parts.
Retired from DIY (2010) but still lurking now and again. My DIY audio projects- PartTimeProjects.com.
  Reply With Quote


Eagle layout and package typesHide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

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

Similar Threads
Thread Thread Starter Forum Replies Last Post
Eagle vs. Sprint-Layout for PCB design/layout hollowman Parts 11 12th January 2014 09:01 PM
Eagle package for IRFP9240 teodorom Solid State 6 2nd September 2007 09:06 PM
VSOP24 package for eagle? Lovan Everything Else 0 25th October 2006 07:37 AM
eagle layout for lm4780 ELiTeHaYDeN Chip Amps 10 27th July 2006 04:45 AM
EAGLE pjt Package jleaman Everything Else 0 16th July 2005 05:59 PM

New To Site? Need Help?

All times are GMT. The time now is 07:19 AM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 16.67%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio