Go Down

Topic: Arduino Mega Replacement components (Read 935 times) previous topic - next topic

helloworld922

Hi, I have two burnt-out components on my Arduino Mega. I found them on the online schematic, but I'm not sure where to look for them.

They are:

D1:
Quote
DIODE-SMB (DIODE-)

C6:
Quote
CPOL-EUSMCD (CPOL-EU)


I looked at the top of the components and they had the following labels:

D1:
Quote
GW
4007


C6:
Quote
A476D
10F60


Does anyone know where I can find replacement parts?

CrossRoads

Digikey.
Search for 1N4007 in SMB package.
Search for aluminum cap in surface mount package, probably 100uF, 25V, maybe 5mm?
Designing & building electrical circuits for over 25 years.  Screw Shield for Mega/Due/Uno,  Bobuino with ATMega1284P, & other '328P & '1284P creations & offerings at  my website.

helloworld922

I think I found an appropriate capacitor:
Quote

Manufacturer:   Murata Electronics North America
Manufacturer Part Number:   ECASD91B107M012K00
Description:   CAP ALUM 100UF 12.5V 20% SMD
Lead free / RoHS Compliant


However, SMB packaged diodes for some reason aren't the same size as the one I measured on the board. It appears to match an SMA packaged diode.

I found this diode which appears to be the correct size:
Quote

Manufacturer:   Diodes Inc
Manufacturer Part Number:   S2BA-13-F
Description:   RECTIFIER GPP 100V 1.5A SMA
Lead free by exemption / RoHS Compliant


Is there anything glaring that would suggest why either of these won't work (I'm a mechanical engineer normally so I don't have a lot of electronics experience)?

CrossRoads

If they fit on the board, they will do fine.

How did you damage the input power section?
Designing & building electrical circuits for over 25 years.  Screw Shield for Mega/Due/Uno,  Bobuino with ATMega1284P, & other '328P & '1284P creations & offerings at  my website.

helloworld922

A battery pack had the red wired as ground and black as hot, so I accidentally plugged it in backwards :( These were the only two components which had visible damage, hopefully the board will work after I replace them.

CrossRoads

Oooh, nasty!
Hopefully the diode took the brunt of it.
Designing & building electrical circuits for over 25 years.  Screw Shield for Mega/Due/Uno,  Bobuino with ATMega1284P, & other '328P & '1284P creations & offerings at  my website.

Osgeld

Quote
Description:   RECTIFIER GPP 100V 1.5A SMA


SMA is smaller than SMB but it should fit on the pads enough to solder
http://arduino.cc/forum/index.php?action=unread;boards=2,3,4,5,67,6,7,8,9,10,11,66,12,13,15,14,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,86,87,89,1;ALL

helloworld922

Got the two parts on and the chip works like a charm :)

Go Up