Footprint for few components

That’s a SOT 363… and you really haven’t found anything for it?

That’s a SMD 1008 (M2520) housing…

SMD 0805 ?

sorry brother i had to find 436 components and was tired of measuring most components footprints :stuck_out_tongue: but now i have to find just 7 more components all credit goes to kicad forum who gave me a tip on how to find since you gave me one more 6 more left to find

Hm… don’t you try to use similar devices over your board for most of the time to make ordering/logistics efficient?
Must be a very big board with that number of different components.

Also, I didn’t measure, I just opened the datasheet and looked at the housing that was listed in there. No real work :wink:

And it would make our life to help you easier if you posted real links to datasheets, I can’t be sure that what I find by using ‘CONN HEADER 6POS, VERTICAL, .100 STR TIN FCI datasheet-68000-406HLF’ via google is what you need.

this is not a big board brother this is a simple board but since its my first time for PCB designing. but now things looks easier the more i play with Kicad the better i feel every day. along with some tips on this forum giving me a big boost :grin: and what to do next.

good point brother it is better to post link rather that plain text makes life more easier :smiley:

If you need less error prone, guess work based help, then yes, direct links would be better.

hello guys

i am finding bit difficult to draw this footprint it is a 40 pin FPC connector with 0.5mm pitch

http://www.mouser.com/ds/2/307/en-xf3m-595480.pdf

if any one has done it before with any number of pins please share

Regards
Nick

Try using FPC Footprint wizard in module editor

OH silly me thank you maui

guys can you please help with foot print parameter for the bellow i am creating this using footprint wizard

http://www.ti.com/lit/ds/symlink/tps65217.pdf

n = 48
pad pitch = 0.4mm
padwidth = 0.2mm
padlength = ?
vertical pitch = ?
horizontal pitch = ?

Regards

Page 88 looks like it has all the dimensions you need.

thanks madworm

n = 48
pad pitch = 0.4mm
padwidth = 0.2mm
padlength = 0.85mm
vertical pitch = 6.8mm
horizontal pitch = 6.8mm

do you think these parameters are correct for that footprint

For the pad length, if you use oval pads, I would do 0.95 pad length. The datasheet has a length of 0.85 mm, but it doesn’t include the second (bottom) circle, whereas Kicad does. The square in the middle is thus 0.85mm - 0.10mm = 0.75 mm, and with 2x 0.10 mm ovals, you’re at 0.95 mm.

I’m also not sure about the pitch. The outer pitch is 6.8mm and the inner is 5.1 mm. But remember that the outer diameter is “missing” 0.10 mm, so that would make it 7.0mm. Half-way between 5.1 and 7.0 is: (5.1 + 7.0) / 2 = 6.05 mm, and I think that’s the number you need to use in the QFP wizard with oval pads (or creating a pad array).

After generating it, see if you can confirm the positions of the pads. The (X, Y)-coordinates of the mouse cursor should be in your lower right in the footprint editor.

I did this for a similar chip (TPS65530: http://www.ti.com/lit/ds/symlink/tps65530.pdf), and it worked well: See https://github.com/engstad/engstad-kicad-lib/blob/master/engstad.pretty/qfn-48-p.kicad_mod

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I reckon something like 80% of the time to lay out a PCB is defining the board shape and fixing holes, library and footprint creation and double checking. The number of errors I have made over the years with connector pin numbering is ridiculous

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Ti footprint name is RSL

I can put one up onto my github later.

the very very odd thing about this one is that the exposed pad is not centered

I definitely sense some “brotherhood and solidarity” between us - we must belong to the same union.

My long-standing claim is that, for any layout project (even updates to an existing design), AT LEAST a quarter of the total project time - and perhaps as much as three-quarters - goes to “library work” of some kind. This is underappreciated, or entirely ignored by almost every newcomer to the field (myself included, a few incarnations ago).

As I compose this post, in some other threads Forum member @Joan_Sparky (with help from others) is making a very eloquent case and offering very practical advice about the creation, care and feeding of custom libraries. See PCB designing for 6 layer and My major frustration with KiCad + footprint talk

The publishers of EDA software like to brag about how many parts are in the libraries supplied with their tools. In my experience, the majority of these parts are simply copied from manufacturers’ literature and arrive with all the errors, inconsistencies, warts and blemishes they had when they were created in nineteen-eighty-something. In my mind, a truly useful tool would be some kind of library administration program that would assist, coach and guide a user into creating and maintaining an efficient library structure, based on reasonable standards.

Connectors is a can of worms in its own right. It starts with whether you are looking at the thing from the “front” (mechanical mating interface), or the “back” (electrical connection interface). It’s amazing that this basic question can propagate confusion through several revisions and updates!

Dale

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And then does numbering go in horizontal rows, vertical columns starting at the top, vertical columns going down and then back up again on the other side. So many possibilities. Throw in using letters to add to the confusion

Circular connectors drawings are often ambiguous on numbering depending on if the number is to the left or right of the pin

www.kicadlib.org: Now “Focus on Stock Trading” spam, in German.

www.kicadcloud.com: Not responding.

http://library.oshec.org/: Not responding

https://www.snapeda.com/ - useful

Yes, sadly some useful sites have disappeared, I have updated my FAQ accordingly.

I think we can conclude that crowdsourcing works well for some types of data, but not others.

http://smisioto.no-ip.org/elettronica/kicad/kicad-en.htm dormant, but a valuable resource