Help ordering right size SMT parts for OshPark Shared project? - Page 1
Forum section: electronics / beginners

author: rwgast_lowlevellogicdesin
author_rank: Frequent Contributor
timestamp: October 03, 2016, 06:33:37 pm
content: I ordered I few PCB's from oshpark for a RF low noise amplifier, I have a ton of the acuall amplifier chip and the power regulators. I usually deadbug or use veri-board so I don't know how to use Eagle, and the schematic is not in English. Basically I just need to know what size the passives are, I think most of them are 1005 from what I can tell with calipers, I know the inductors are a bit bigger though and the SMA pads don't fit the launch style SMA connectors I use on most everything.The download and information for the PCB is herehttps://oshpark.com/shared_projects, if anyone could help me out, by either telling me how to figure out the part size in eagle, or just telling me what size the parts are I would greatly appreciate it.

author: janoc
author_rank: Super Contributor
timestamp: October 03, 2016, 06:57:49 pm
content: Hello,It would help if you have linked the actual project page, that shared project page has 1901 sub pages ... There is the "Permalink" feature on the page for that.Re passives size - it would be probably best to track down the author of the original board and ask them what they have used.

author: rwgast_lowlevellogicdesin
author_rank: Frequent Contributor
timestamp: October 03, 2016, 08:14:34 pm
content: Oh wow Im so sorry I did not notice that, the author may have listed the sizes somewhere but it is not english iv'e read through the authors page with google translate with no luck

author: janoc
author_rank: Super Contributor
timestamp: October 04, 2016, 07:58:31 pm
content: You still haven't included the link to the project page

author: rwgast_lowlevellogicdesin
author_rank: Frequent Contributor
timestamp: October 05, 2016, 09:39:02 pm
content: O jessus christ!!!! I already ordered the parts 0603 and 0805 that was my best guess using digital calipers. Although I forgot to get the sma connectors.Here is the project links, original site and oshpark, any help would still be appreciated so I can figure out a better way to do this in the futurehttps://blog.brichacek.net/nizkosumovy-rf-zesilovac-s-mini-circuits-psa4-5043https://oshpark.com/shared_projects/1LKMh6Ey

author: Monkeh
author_rank: Super Contributor
timestamp: October 05, 2016, 10:53:47 pm
content: Tantalum caps in case code A, 0603 ceramic caps and resistor, 0805 inductors.They used stock Eagle footprints, so the 0603 and 0805 are basically interchangable.

author: janoc
author_rank: Super Contributor
timestamp: October 06, 2016, 08:02:37 pm
content: Quote from: rwgast_lowlevellogicdesin on October 05, 2016, 09:39:02 pmHis original site has a zipped Eagle project, so you could download the free version of Eagle (https://cadsoft.io/) and open the project in it. That will tell you the sizes of the footprints. I guess that is what Monkeh has done, I don't have Eagle installed myself.Calipers are the sure fire way to figure that out too, nothing wrong with that.Or you could ask the guy - he has a contact form on his website. I have checked on QRZ.com, but OK3ZB doesn't have an e-mail there, sadly.

author: Monkeh
author_rank: Super Contributor
timestamp: October 06, 2016, 08:05:14 pm
content: I didn't even bother opening Eagle, the files are just XML.

author: janoc
author_rank: Super Contributor
timestamp: October 08, 2016, 11:46:35 am
content: Quote from: Monkeh on October 06, 2016, 08:05:14 pmAh ok. Good point.