PCB Libraries Forum Homepage
Forum Home Forum Home > PCB Footprint Expert > Questions & Answers
  New Posts New Posts RSS Feed - "S" dim for DFN 2 Pin & Avago template request
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

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

 Post Reply Post Reply
Author
Message Reverse Sort Order
jameshead View Drop Down
Expert User
Expert User
Avatar

Joined: 20 Mar 2012
Location: Oxfordshire, UK
Status: Offline
Points: 576
Post Options Post Options   Thanks (0) Thanks(0)   Quote jameshead Quote  Post ReplyReply Direct Link To This Post Topic: "S" dim for DFN 2 Pin & Avago template request
    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.
Back to Top
Tom H View Drop Down
Admin Group
Admin Group
Avatar

Joined: 05 Jan 2012
Location: San Diego, CA
Status: Offline
Points: 5308
Post Options Post Options   Thanks (1) Thanks(1)   Quote Tom H Quote  Post ReplyReply Direct Link To This Post 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 is the 2-pin "Side Concave Diode/LED" -
 
 
Back to Top
jameshead View Drop Down
Expert User
Expert User
Avatar

Joined: 20 Mar 2012
Location: Oxfordshire, UK
Status: Offline
Points: 576
Post Options Post Options   Thanks (0) Thanks(0)   Quote jameshead Quote  Post ReplyReply Direct Link To This Post 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

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?


Back to Top
 Post Reply Post Reply

Forum Jump Forum Permissions View Drop Down



This page was generated in 0.063 seconds.