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3D Plus Component

Printed From: PCB Libraries Forum
Category: PCB Footprint Expert
Forum Name: Questions & Answers
Forum Description: issues and technical support
URL: https://www.PCBLibraries.com/forum/forum_posts.asp?TID=1783
Printed Date: 18 Nov 2024 at 8:19pm


Topic: 3D Plus Component
Posted By: AGONZ67
Subject: 3D Plus Component
Date Posted: 30 Oct 2015 at 5:32pm
Is there a correct package type in Library Expert to create an accurate landpattern for this component? SOL was the closest I could find but this is limited to 8 pins.   uploads/71/package_w4.pdf" rel="nofollow - uploads/71/package_w4.pdf




Replies:
Posted By: Tom H
Date Posted: 30 Oct 2015 at 9:20pm
This is a unique lead form that is not registered in any standard.
 
It would require a mfr. recommended pattern.

Or I would personally calculate the pad length and spacing using the math that is noted in "What's New in IPC-7351C" - http://www.pcblibraries.com/downloads/FPX!What-is-New-in-IPC-7351C.asp" rel="nofollow - download
 
The "Pad Length" math calculation for a Nominal Density Level is (get the pad width and pad spacing from the IPC-7351C paper):
  • Toe = Nominal Terminal Lead Thickness = 0.25 mm
  • Heel = 1.5 X Nominal Terminal Lead Thickness = 0.375 mm
  • Pad Length = Toe + Heel + Nominal Lead Length = 3.725



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