Wrong footprint SOT363V1/SOT363V

Report bugs here
Post Reply
Message
Author
d1wang
Posts: 46
Joined: 13 Nov 2018, 02:19

Wrong footprint SOT363V1/SOT363V

#1 Post by d1wang » 15 Sep 2019, 23:21

This is related to this thread: viewtopic.php?f=4&t=11037

I reviewed footprints from several manufacturers. There are no such thing SOT363 with 0.95mm pitch. A small-transistor-package with 0.95mm pitch should be called SOT23-x

Please remove the SOT363V1 footprint from standard library. It's not used anywhere and will cause confusion.

Consider removing SI3441DV, SI3442DV, SI454DV, and SI455DV components from standard library. They are obsolete. SI3457DV is active.

Please change the footprint of SI3441DV, SI3442DV, SI454DV, SI455DV, and SI3457DV to SOT23-6.

Consider removing SOT363V (1mm pitch). It should be a variation of SOT23-6, not a variation of SOT363. Also, the current SOT363V is almost identical to SOT23-6. IRF5801, IRF5803, IRF5810, IRF5850, and IRF5852 are the only odd ones that have 1mm pitch, but they will nevertheless fit on SOT23-6. We can keep it simple by removing SOT363V and change the IRFxxxx to use SOT23-6. Or we can just rename SOT363V to SOT23-6V.

Alex
Technical Support
Posts: 3170
Joined: 14 Jun 2010, 06:43

Re: Wrong footprint SOT363V1/SOT363V

#2 Post by Alex » 16 Sep 2019, 09:08

Thank you for the report, we will check these components and patterns. In future libraries however, patterns will be named and modified according IPC-7351C standard.

d1wang
Posts: 46
Joined: 13 Nov 2018, 02:19

Re: Wrong footprint SOT363V1/SOT363V

#3 Post by d1wang » 19 Sep 2019, 22:33

I look forward to the change. I find myself redoing simple footprints such as SOT363. It's frustrating when semiconductor manufacturers recommend certain practices in their own app notes and don't follow them in their suggested footprints. For SOT, for instance, the heel is too short and toe too long, resulting a bigger footprint with worse soldering.

Post Reply