PCB Libraries Forum Homepage
Forum Home Forum Home > PCB Footprint Expert > Questions & Answers
  New Posts New Posts RSS Feed - How to name SOT-353 Package
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

How to name SOT-353 Package

 Post Reply Post Reply
adevries View Drop Down
Active User
Active User

Joined: 06 Dec 2019
Status: Offline
Points: 16
Post Options Post Options   Thanks (0) Thanks(0)   Quote adevries Quote  Post ReplyReply Direct Link To This Post Topic: How to name SOT-353 Package
    Posted: 06 Dec 2019 at 5:27pm

I'm relatively new to this software, and I'm having trouble determining what category a SOT-353 falls into. The closest match I can find listed is a SOT-23, but SOT-353's are smaller than SOT-23's. Has anyone else encountered this issue?

For reference, this is the package I'm talking about: https://www.nxp.com/docs/en/package-information/SOT353.pdf

Back to Top
Tom H View Drop Down
Admin Group
Admin Group

Joined: 05 Jan 2012
Location: San Diego, CA
Status: Offline
Points: 5239
Post Options Post Options   Thanks (1) Thanks(1)   Quote Tom H Quote  Post ReplyReply Direct Link To This Post Posted: 06 Dec 2019 at 5:44pm
The SOT-353 is a 0.65 mm pitch SOT23-5 type package. 

However, if you want to use the mfr. recommended pattern, you need to use the FP Designer module. 

You would normally start in the SOT23 calculator and set all the pads to the same value 0.60 X 0.60 then move the footprint to FP Designer to create a new 0.60 X 0.40 pad stack and replace pin 2. 

Also, edit the pad stacks to make the Paste Mask 0.50 X 0.50 on pins 1, 3, 4, 5. 

Takes about 4 minutes to make the mfr. pattern. 

Stay connected - follow us! Twitter - LinkedIn
Back to Top
 Post Reply Post Reply

Forum Jump Forum Permissions View Drop Down

This page was generated in 0.063 seconds.