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"S" dim for DFN 2 Pin & Avago template request

Printed From: PCB Libraries Forum
Category: PCB Footprint Expert
Forum Name: Questions & Answers
Forum Description: issues and technical support
URL: http://www.PCBLibraries.com/forum/forum_posts.asp?TID=558
Printed Date: 08 Feb 2023 at 5:14pm


Topic: "S" dim for DFN 2 Pin & Avago template request
Posted By: jameshead
Subject: "S" dim for DFN 2 Pin & Avago template request
Date Posted: 17 Sep 2012 at 1:10am
I used the Dual Flat No-Lead (DFN 2 Pin) calculator to create a footprint for an Avago ASMT-Bx20-AS000 LED since it seemed the closest match.

Datasheet here:

http://www.avagotech.com/docs/AV02-0389EN" rel="nofollow - http://www.avagotech.com/docs/AV02-0389EN

I entered pitch as 2.65 mm to begin with (3.2 mm - 0.55 mm) along with the other dims that match up well.

Clicking Footprint and Dimensions after the calculation to enter the manufacturers recommended soldering land pattern and there's no S dim in this calculator.  May an S dim be added for times users want to "adapt" a calculator to a device?

I went back to the component dims and changed the pitch to 3.1 mm (4.2 mm - 1.1 mm) to get around it, and re-entered the W and L dimensions from the manufacturer's datasheet so easily worked around but thought adding an S might be neater.

Can we have an Avago template added?





Replies:
Posted By: Tom H
Date Posted: 17 Sep 2012 at 8:21am
Can you please create and send me a Avago template and I'll add it to the installer.
 
The component family for this part - http://www.avagotech.com/docs/AV02-0389EN" rel="nofollow - http://www.avagotech.com/docs/AV02-0389EN  is the 2-pin "Side Concave Diode/LED" -
 
 


Posted By: jameshead
Date Posted: 17 Sep 2012 at 8:32am
Thanks Tom, I'll e-mail you an Avago template directly. 
 
To be honest I did stop for a second on the Diode Side Concave calculator but moved quickly on because picture showed a four pin device with an "e" dimension so I just assumed there wouldn't be a two pin version.



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