BOM

[JanMrlth]

I ordered the parts on digikey and tried to replace the LCSC-Components.
http://www.digikey.de/short/p1dcp2

I was not able to find a replacement for L1 - L3
Do you think this might work although it is only rated for 1.15A instead of 3A? I never worked with Inductrs before and have no idea what to look for.
https://www.digikey.de/product-detail/en/MLZ2012N1R0LT000/445-6756-1-ND/2523577/?itemSeq=312817283

As an alternative I ordered these. They have only 55mOhm but 3.3A.
https://www.digikey.de/product-detail/en/CIGT201208EH1R0MNE/1276-6886-1-ND/7041286/?itemSeq=312817286

I'm an getting exited! :) Hope to see you in Leipzig.

[JanMrlth]

Hi Niklas,

which exact USB-receptacle do you use?
These look promissing:
https://lcsc.com/product-detail/USB-Connectors_Jing-Extension-of-the-Electronic-Co-Jing-Extension-of-the-Electronic-Co-USB-3-1-C-16PF-SMT2-0Type_C167321.html

Do you have any left over, that you could bring to 36C3?
Cheers
Jan

[judge2005]

Hi Jan.

That BOM you linked to at digikey above, is it complete? did it work?

BTW, what lcsc components are you referring to?

[JanMrlth]

Yes, it worked.

If I remember correctly:
The C-1206 arround the mosfets should be 50V instead. (C39,42 - C34,C41 - C16...)
The USB-connector is from LSCS - see link above.
Cave: The Silkscreen for R5 and R11 is interchanged.
You do not really need the SW1 - it is only pressed once for programming.

Have fun!

[judge2005]

Thanks Jan, that;s good to know. BTW which of the inductor options did you use for L1-L3?

I also found this USB connector on Digikey:
https://www.digikey.com/product-detail/en/gct/USB4105-GF-A/2073-USB4105-GF-ACT-ND/11198510

It looks identical to https://lcsc.com/product-detail/USB-Connectors_XKB-Enterprise-U262-16XN-4BVC11_C319148.html

[designingSparks]

What is the voltage rating of C17-19? It's not stated on the schematic or iBOM.

[JanMrlth]

e.g.

[judge2005]

I know this isn't directly related to the BOM, but I wonder if you can answer it: Am I supposed to be able to see the discharge even if I am not playing any music?