err... anyone know where I could get a KiCad FootPrint for this component? - Page 1
Forum section: electronics / beginners

author: BrainyCapacitance
author_rank: Contributor
timestamp: June 12, 2024, 10:19:06 pm
content: err... I'm building this circuit, but one of the components is this capacitor (382LX152M500B102VS by CDE). this capacitor is a 5-pin 50mmø electrolytic. but the standard KiCad FootPrint (FP for short) library does not have any cap FPs that are ≥40.00mm in diameter, or any cap FP with more than 3 pins. I'm a little afraid that if I design my own FP for the cap, it might have some human error, and not fit. (especially the circular pin arrangement) Does anyone here know where I could get an FP for this thing? I'm ordering it from Mouser, and I saw that there is this "ecad model" thing, and it has the FP but how do I download it? plz be gentle, I'm no expert at this "online stuff" especially account stuff. and complicated math isn't really my strong suit.below is a screenshot from the datasheet showing the dimensions

author: twospoons
author_rank: Frequent Contributor
timestamp: June 12, 2024, 10:23:59 pm
content: Really you'd be better to learn to make your own footprints, because at some point youwillhave to do this yourself. Its a skill well worth mastering.Create your footprint, print it out 1:1 scale, and compare with the real part. You will soon see if you have made any errors. The datasheet has made it easy for you by showing a dimensioned hole layout.

author: BrainyCapacitance
author_rank: Contributor
timestamp: June 12, 2024, 10:28:36 pm
content: would you recommend any good tools/addons to make footprint-making easier and more precise?

author: Benta
author_rank: Super Contributor
timestamp: June 12, 2024, 10:31:00 pm
content: What more do you need?

author: BrainyCapacitance
author_rank: Contributor
timestamp: June 12, 2024, 10:33:04 pm
content: e.g. positioning the pins 60° on the same axis from each other...? uh, maybe I'm a little too small-brained for electronics.

author: Benta
author_rank: Super Contributor
timestamp: June 12, 2024, 10:35:52 pm
content: A word of warning/advice:The installed libraries on KiCAD are read-only.You'll need to create a personal library for your footprint.more can be found on forum.kicad.info

author: BrainyCapacitance
author_rank: Contributor
timestamp: June 12, 2024, 10:37:06 pm
content: well, I have already made my own FP folder in the FP section, but all I've done is modify OTHER pre-made FPs

author: Benta
author_rank: Super Contributor
timestamp: June 12, 2024, 10:39:59 pm
content: Quote from: BrainyCapacitance on June 12, 2024, 10:33:04 pmNo, but you seem to have forgotten basic trigonometry... you know, sine and cosine. Done in a few seconds on a calculator.

author: BrainyCapacitance
author_rank: Contributor
timestamp: June 12, 2024, 10:41:58 pm
content: well... I'm only 12y/o. huh, I think there's a mistake in my profile... it says I'm 16. gotta change that.

author: retiredfeline
author_rank: Frequent Contributor
timestamp: June 12, 2024, 10:47:30 pm
content: KiCad's footprint editor has a wizard that can make a circular array of TH pads. You can specify the circle size, the number of pads, the pad size, etc.

author: BrainyCapacitance
author_rank: Contributor
timestamp: June 12, 2024, 10:48:19 pm
content: a.......... Wizard?

author: BrainyCapacitance
author_rank: Contributor
timestamp: June 12, 2024, 10:50:13 pm
content: ah! I see! thanks sooo much for the advice y'all!!

author: retiredfeline
author_rank: Frequent Contributor
timestamp: June 12, 2024, 10:54:36 pm
content: You'll need to make a 6 pad array and then delete one or not give one a pad number. Better to delete one, that way you get keying.

author: BrainyCapacitance
author_rank: Contributor
timestamp: June 12, 2024, 10:57:15 pm
content: err can anyone tell the "pad circle" diameter from the datasheet screenshot? I myself can't seem to tell. DATASHEET LINK:https://www.cde.com/resources/catalogs/380-382.pdf

author: Benta
author_rank: Super Contributor
timestamp: June 12, 2024, 10:58:36 pm
content: It's in your original picture: 25.0 mm. Hole diameter is 2.0 mm. Appropriate pad size is probably 4 mm.

author: BrainyCapacitance
author_rank: Contributor
timestamp: June 12, 2024, 11:01:05 pm
content: oh! sorry, I didn't notice that before.

author: tooki
author_rank: Super Contributor
timestamp: June 13, 2024, 06:53:57 am
content: Or just, ya know, download the footprint from the product page on Mouser.But I do agree that learning to make your own footprints is a skill that you cannot get around. You WILL need to do it eventually, plus you often find errors in downloaded footprints, or just things you don’t like in them, or that need to be tweaked for your application, so modifying existing footprints is an essential skill too.

author: xvr
author_rank: Frequent Contributor
timestamp: June 13, 2024, 09:29:33 am
content: https://www.snapeda.com/parts/382LX152M500B102VS/Cornell%20Dubilier%20Electronics%20(CDE)/view-part/?ref=search&t=382LX152M500B102VS

author: ifonlyeverything
author_rank: Regular Contributor
timestamp: June 13, 2024, 11:24:09 am
content: Another tip for making your own footprints is to print a 1:1 scale copy on paper and see if your part physically fits on/in it. It's more so an issue for SMD components, but it's definitely annoying when you figure out the hard way, when you have a PCB sitting in front of you, that your custom footprint is too small to allow for hand soldering.

author: tooki
author_rank: Super Contributor
timestamp: June 13, 2024, 05:27:18 pm
content: Quote from: ifonlyeverything on June 13, 2024, 11:24:09 amAnd similarly, this is why I always add the 3D model if the manufacturer provides it. It's a great way to see if the footprint actually matches the part!

author: tooki
author_rank: Super Contributor
timestamp: June 13, 2024, 05:30:32 pm
content: Quote from: kripton2035 on June 13, 2024, 11:58:32 amSometimes I wish the forums also had a "downvote" button to complement the "say thanks": who gives a shit what a delusional AI system with no understanding of, well,anythinghas to say about detailed technical things? Posting ChatGPT responses is basically spam, except without an obvious benefit to the spammer!

author: BrainyCapacitance
author_rank: Contributor
timestamp: June 13, 2024, 06:02:57 pm
content: all right! now I have awesome knowledge on FPs, all thanks to you guys! keep up the good work!

author: trilerian
author_rank: Regular Contributor
timestamp: June 13, 2024, 06:17:08 pm
content: While I completely agree with the advice to learn to make your own footprints, sometimes I am lazy as well. Using Mouser you can request ecad footprints on the page of the part. You have to download a tool but it works decently well and imports it into Kicad for you after you get it setup correctly. The longest I have waited on a footprint was 24 hours.That said, being able to make your own foot prints is something worth learning.

author: janoc
author_rank: Super Contributor
timestamp: June 13, 2024, 06:19:01 pm
content: Quote from: tooki on June 13, 2024, 05:30:32 pmSeriously, we should ban post and posters like that from the forum. It is completely worthless and useless clutter. Worse, if someone few year later doesn't notice the post they found by googling has been machine-generated and takes it face value, they can majorly shoot themselves in the foot.This sort of shit postingisspam.

author: MarkF
author_rank: Super Contributor
timestamp: June 13, 2024, 08:14:23 pm
content: I made a somewhat crude drawing if you would like to compare my CAD model with your footprint.