PCB Libraries Forum : Component Leads Too Short https://www.PCBLibraries.com/forum/ Mon, 20 Apr 2026 19:35:41 +0000 Tue, 10 Nov 2015 11:19:16 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.07 360 https://www.PCBLibraries.com/forum/RSS_post_feed.asp?TID=1789 <![CDATA[PCB Libraries Forum]]> https://www.PCBLibraries.com/forum/forum_images/PCBLForumLogo.gif https://www.PCBLibraries.com/forum/ <![CDATA[Component Leads Too Short : I would suggest to socket the...]]> https://www.PCBLibraries.com/forum/component-leads-too-short_topic1789_post7337.html#7337 Author: ernestorey
Subject: 1789
Posted: 10 Nov 2015 at 11:19am

I would suggest to socket the part using wire-wrap (0.025" square post) type sockets, those have very long tails.]]> Tue, 10 Nov 2015 11:19:16 +0000 https://www.PCBLibraries.com/forum/component-leads-too-short_topic1789_post7337.html#7337 <![CDATA[Component Leads Too Short : Intrusive soldering is one option....]]> https://www.PCBLibraries.com/forum/component-leads-too-short_topic1789_post7328.html#7328 Author: Tom H
Subject: 1789
Posted: 08 Nov 2015 at 2:47pm

Intrusive soldering is one option.
 
The second option is tomill down the PCB at these locations only.
 
There's no easy solution.

]]> Sun, 08 Nov 2015 14:47:03 +0000 https://www.PCBLibraries.com/forum/component-leads-too-short_topic1789_post7328.html#7328 <![CDATA[Component Leads Too Short : Hello , thanks for the reply:1-...]]> https://www.PCBLibraries.com/forum/component-leads-too-short_topic1789_post7325.html#7325 Author: Eng. Jesus Mora
Subject: 1789
Posted: 06 Nov 2015 at 4:04pm

Hello , thanks for the reply:

 1- The application for the final assembly is for image processing purposes.
 2- It is class 2
 3- It is lead free
 4- The board is about 250 mils thick
 5- Lead diameter: 1mm  (in most of the cases) , hole diameter : 1.3 mm
 6- In most of the cases the barrel of the hole is tied to power internal planes.
 7- There are thermal relief pads
 8- It is very critical for the mission.
 9- It is planned to be flight equipment.


I hope this helps with the answer.

Thanks alot.


]]> Fri, 06 Nov 2015 16:04:49 +0000 https://www.PCBLibraries.com/forum/component-leads-too-short_topic1789_post7325.html#7325 <![CDATA[Component Leads Too Short : The only option is to hand...]]> https://www.PCBLibraries.com/forum/component-leads-too-short_topic1789_post7323.html#7323 Author: Tom H
Subject: 1789
Posted: 06 Nov 2015 at 10:09am

Theonly option is to hand solder the component to ensure a good top fillet. The questions below can affect the ability to perform this solder joint. Also assumes properly formed replacement parts are not available. 

 

Whatis the application for the final assembly?  Is it Class 2? 3? Is it leador lead free?  What is the board thickness? 

 

Whatis the component lead diameter and PCB hole diameter?  Id the barrel ofthe hole tied to any type of a copper plane?  If so, are there thermalrelief pads?  Is it mission critical?  Is it flight equipment?

 

Answersto these questions would influence my answer to the original question.

]]> Fri, 06 Nov 2015 10:09:52 +0000 https://www.PCBLibraries.com/forum/component-leads-too-short_topic1789_post7323.html#7323 <![CDATA[Component Leads Too Short : Kind of a random question, what...]]> https://www.PCBLibraries.com/forum/component-leads-too-short_topic1789_post7321.html#7321 Author: Eng. Jesus Mora
Subject: 1789
Posted: 05 Nov 2015 at 4:26pm

Kind of a random question, what would be the best option to do if your through hole component leads are shorter than your pcb thickness?
 
And using other components is not an option for us.
 
Any suggestions would be greatly appreciated.
 
Thanks
Jesus

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