Need help identifying this part.
I have a non-working DUE I bought and it is missing one part.
I circled the part in red, can some one tell me what this part is?
Hi
it is SRR0604-100ML .. 10uH coil ( L4 in reference diagram) ..
and the link for component..
regards, reha
The board was dropped/subject to vibration, and the inductor is the heaviest/densest part and pulled
off the board. Handle the board carefully its not as robust as many others.
If the board is going into a high-vibration environment epoxy the inductor down to the board
all round to prevent it moving perhaps?
With the new IDE 1.5.8 update I can now load sketches to the board.
So now need the extra power for the loads on pins.
I found cheap solution by buying a DC/DC converter board (EBAY $1 free shipping) with a SMT 10uH 1.8A coil installed. That board I will sacrifice for the coil.
Coil was cheap through Digikey, Newark and such but shipping and minimums cost to much.
Thanks all for verification to my thoughts.
Ah I see - so if I wanted to only power the board with USB , I could get rid of all the circuitry in that bottom right corner?
Well if you pop the 5 volt choke (L4) the external DC in stops working but you can run from the USB ports only.
The issue is you will be limited to the USB port current limits.
Look under the products page for the DUE and you will find the schematics and can see all parts on there related to the 5V external power section.
I do not see what you would gain in removing the external jack, diode, cap, IC2, and choke as when running USB powered as they basically are non-op. It is only when external power is applied that the power from the USB port is gated off.