PCB Libraries Forum Homepage
Forum Home Forum Home > PCB Footprint Expert > Questions & Answers
  New Posts New Posts RSS Feed - Surface mount Power transistor footprint
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

Surface mount Power transistor footprint
 Post Reply Post Reply
Author
Message
  Topic Search Topic Search  Topic Options Topic Options
wawaus View Drop Down
Active User
Active User


Joined: 09 Jul 2013
Location: Melbourne
Status: Offline
Points: 30 		Post Options Post Options   Thanks (0) Thanks(0)   Quote wawaus Quote  Post ReplyReply Direct Link To This Post Topic: Surface mount Power transistor footprint
    Posted: 02 May 2021 at 6:55pm
I cannot find a means of creating standard footprints for surface mount power transistors for example:
ON Semi NTMFS5C604NLT3G (5.15x6.15mm) or
VISHAY SiSH434DN-T1-GE3 (3.3x3.3mm)

The manufacturers variously call these footprints 8-PowerTDFN, 8-PowerVDFN, POWERPAK SO8, 5-DFN, 8-SOFL, SO8FL, 8DFN-EP, ....,    etc for the nominal 5.15 x6.15mm, and 8-TSON, 1212-8S, etc for the nominal 3.3x3.3mm footprints.

These seem to be more or less industry standard footprints but nothing like them appears in the list of SM footprint types/families in either Footprint Expert or the preceeding Library Expert....

likewise footprint naming conventions, apart from using Manufacturer's names is entirely absent.

Is there a plan to include this form of footprint in a future release?
Back to Top
Back to Top
Tom H View Drop Down
Admin Group
Admin Group
Avatar

Joined: 05 Jan 2012
Location: San Diego, CA
Status: Offline
Points: 5718 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Tom H Quote  Post ReplyReply Direct Link To This Post Posted: 02 May 2021 at 7:24pm
Those are unique custom packages and are considered non-standard components. 

You can request the part on POD and we'll create it for you for $10 with a same day turn. 

We build the footprint in the SON w/Tab calculator and then move it to FP Designer to fine tune the pad stack placement. 

Then we output what we can to the CAD tool and add the remining pieces. 

Then we output the CAD data and import into an FPX file and everyone can download it as part of their POD subscription. 

Only one person pays to create the original footprint than everyone else gets it for free. 
Stay connected - follow us! X - LinkedIn
Back to Top
wawaus View Drop Down
Active User
Active User


Joined: 09 Jul 2013
Location: Melbourne
Status: Offline
Points: 30 		Post Options Post Options   Thanks (0) Thanks(0)   Quote wawaus Quote  Post ReplyReply Direct Link To This Post Posted: 02 May 2021 at 11:39pm
Thank you
Back to Top
 Post Reply Post Reply

Forum Jump Forum Permissions View Drop Down



This page was generated in 0.422 seconds.