Dear Kicad
i found the footprint for most of the components that i needed but for few i can’t find footprint
for the bellow few components can somebody please help in which library can i find the bellow component footprints.
ferrite bead with 0805 style
CONN HEADER 6POS, VERTICAL, .100 STR TIN FCI datasheet-68000-406HLF
INDUCTOR 2.2UH 20% 1300MA 1008 Murata datasheet-LQM2HPN2R2MG0L
40-pin fpc zif connector 0.5mm pitch FP4ZLB40TM2T
DMC56404 Silicon NPN epitaxial planar type
crystal oscillaor CM200C-32.768KAZF-UT
Hi @Nick123 if you cannot find it, you have to draw your own footprints. It is not possible to have all footprints in the works for different components. Also, most of the designers in the end, create their own footprints for all components they use.
sorry brother i had to find 436 components and was tired of measuring most components footprints 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
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 and what to do next.
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 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
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).
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!
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
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
and what to do next.