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chill
2013-02-13, 02:33
I'm hoping someone out there will be able to help me identify a part so that I can repair the VFD in an old SB2. One of the aluminium capacitors has snapped off the board, and being a surface mount component it's physically broken and I need to get a replacement. In the attached photo, it's part number C38, which is an aluminium capacitor that looks identical to C37 apart from the code printed on the case. The code on the broken part says '220 CHA 4L2'. I'm assuming this means it's a 220 microfarad capacitor, but do the other digits give any more details (voltage?).

This is from an SB2 that I mounted in my DIY pre-amp housing, and when I dismantled the pre-amp to start reworking it into a miniDSP box I saw this capacitor rattling around in the bottom. Oddly, as far as I'm aware the VFD works without it.

Thanks
Chris

14477

slartibartfast
2013-02-13, 04:37
If it is Panasonic look at this data sheet http://industrial.panasonic.com/www-data/pdf/ABA0000/ABA0000CE3.pdf
HA seems to be the series and C the voltage. In this case 16V.

chill
2013-02-13, 05:39
If it is Panasonic look at this data sheet http://industrial.panasonic.com/www-data/pdf/ABA0000/ABA0000CE3.pdf
HA seems to be the series and C the voltage. In this case 16V.

That's brilliant - thanks Slartibartfast.

I couldn't see a manufacturer name or ID on the case, but that certainly seems to match the part I've got. And it's available at my local RS (here (http://uk.rs-online.com/web/p/aluminium-capacitors/7472828/)), although I think I'll keep looking for somewhere that might sell me fewer than 25.

I've never done any surface mount soldering, and don't have the tools, so I may try to borrow the one gathering dust in the store room where I work.

Thanks again.

chill
2013-02-13, 06:27
I think I'll keep looking for somewhere that might sell me fewer than 25.

Farnell to the rescue: http://uk.farnell.com/jsp/search/productdetail.jsp?sku=1973309

They'll allow me to order a single capacitor, and it looks like shipping is free. At 21p each I think I'll push the boat out and buy a spare one too :)