PCB Libraries Forum : CFP/CQFP https://www.PCBLibraries.com/forum/ Mon, 06 Apr 2026 22:15:14 +0000 Wed, 09 Sep 2015 13:24:43 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.07 360 https://www.PCBLibraries.com/forum/RSS_post_feed.asp?TID=1755 <![CDATA[PCB Libraries Forum]]> https://www.PCBLibraries.com/forum/forum_images/PCBLForumLogo.gif https://www.PCBLibraries.com/forum/ <![CDATA[CFP/CQFP : Because Library Expert outputs...]]> https://www.PCBLibraries.com/forum/cfp-cqfp_topic1755_post7190.html#7190 Author: Tom H
Subject: 1755
Posted: 09 Sep 2015 at 1:24pm

Because Library Expert outputs perfect 3D STEP models and there is a BIG difference in a black plastic molded QFP and a Ceramic CQFP.
 
Also, the FPX file "Physical Description" is different and IPC-7351 standard has different categories for these component families.
 
That's about it.
 
]]> Wed, 09 Sep 2015 13:24:43 +0000 https://www.PCBLibraries.com/forum/cfp-cqfp_topic1755_post7190.html#7190 <![CDATA[CFP/CQFP : Once the dimensions are provided...]]> https://www.PCBLibraries.com/forum/cfp-cqfp_topic1755_post7189.html#7189 Author: AGONZ67
Subject: 1755
Posted: 09 Sep 2015 at 11:56am

Once the dimensions are provided from the assembly shop or manufacturer it is created as either a CFP, or CQFP, which appears to be calculated the same as SOIC, or QFP ? What benefit is provided by having a separate CFP, CQFP entry other than the prefix of the name?
]]> Wed, 09 Sep 2015 11:56:03 +0000 https://www.PCBLibraries.com/forum/cfp-cqfp_topic1755_post7189.html#7189 <![CDATA[CFP/CQFP : The dimensions must come from...]]> https://www.PCBLibraries.com/forum/cfp-cqfp_topic1755_post7188.html#7188 Author: Tom H
Subject: 1755
Posted: 08 Sep 2015 at 2:13pm

The dimensions must come from the assembly shop or manufacturer that is performing the lead bending.
]]> Tue, 08 Sep 2015 14:13:22 +0000 https://www.PCBLibraries.com/forum/cfp-cqfp_topic1755_post7188.html#7188 <![CDATA[CFP/CQFP : Yes, I understand that, but I...]]> https://www.PCBLibraries.com/forum/cfp-cqfp_topic1755_post7187.html#7187 Author: AGONZ67
Subject: 1755
Posted: 08 Sep 2015 at 2:10pm

Yes, I understand that, but I am looking for information on how to calculate the dimensions, "L" & "E" to enter into PCBLE? Is there a formula for arriving at these dimensions? From the image below, where do I get the information for the bends, the height of the leads, the length of the leads etc to enter into the Library expert?

]]> Tue, 08 Sep 2015 14:10:56 +0000 https://www.PCBLibraries.com/forum/cfp-cqfp_topic1755_post7187.html#7187 <![CDATA[CFP/CQFP : All CFP and CQFP must have their...]]> https://www.PCBLibraries.com/forum/cfp-cqfp_topic1755_post7186.html#7186 Author: Tom H
Subject: 1755
Posted: 08 Sep 2015 at 2:06pm

All CFP and CQFP must have their leads formed with a lead bender to the shape of a Gull Wing lead.
]]> Tue, 08 Sep 2015 14:06:15 +0000 https://www.PCBLibraries.com/forum/cfp-cqfp_topic1755_post7186.html#7186 <![CDATA[CFP/CQFP : The image shown for CFP and CQFP...]]> https://www.PCBLibraries.com/forum/cfp-cqfp_topic1755_post7185.html#7185 Author: AGONZ67
Subject: 1755
Posted: 08 Sep 2015 at 12:08pm

The image shown for CFP and CQFP is shown with gullwing leads.
]]> Tue, 08 Sep 2015 12:08:04 +0000 https://www.PCBLibraries.com/forum/cfp-cqfp_topic1755_post7185.html#7185