Hi,
attached is a pic and the schematic for the Delta 1010 power supply. Im looking to replace the 470uF 35volt and the 2200uF 50volt electrolytics but dont know how to choose the best brand and series to replace these with.
Any help or suggestions would be greatly appreciated.
Thx
attached is a pic and the schematic for the Delta 1010 power supply. Im looking to replace the 470uF 35volt and the 2200uF 50volt electrolytics but dont know how to choose the best brand and series to replace these with.
Any help or suggestions would be greatly appreciated.
Thx
Attachments
First look up the old spec sheets. That will allow you then to search for better specs for ESR and max ampage when derated for frequency.
Pay attention to tge size and pin/terminal spacing.
Panasonic or CDE are ok. Just as. Starting point.
Pay attention to tge size and pin/terminal spacing.
Panasonic or CDE are ok. Just as. Starting point.
If the load is a switcher supply, these need to be low ESR.
If it is a Class AB or class A amplifier, then regular ESR would be fine.
I use industrial grade long life (>3000 hours service life) caps from panasonic, nichicon, rubicon, kemet. I do not buy surplus used or bargain caps. (ebay, craigslist, alibaba)
If you check the CDE datasheet, last time I looked, their spec for ripple at end of life was looser than the previous four brands. Things can change, download some datasheets yourself.
Read dimensions on the selector table. Too tall, too fat, wrong lead spacing, are problems. 105C rated parts can last a little longer at moderate temperatures than 85 C parts with same service life rating. . If the interior of your product nears 85 C, limit purchase to the higher temp rated parts.
If it is a Class AB or class A amplifier, then regular ESR would be fine.
I use industrial grade long life (>3000 hours service life) caps from panasonic, nichicon, rubicon, kemet. I do not buy surplus used or bargain caps. (ebay, craigslist, alibaba)
If you check the CDE datasheet, last time I looked, their spec for ripple at end of life was looser than the previous four brands. Things can change, download some datasheets yourself.
Read dimensions on the selector table. Too tall, too fat, wrong lead spacing, are problems. 105C rated parts can last a little longer at moderate temperatures than 85 C parts with same service life rating. . If the interior of your product nears 85 C, limit purchase to the higher temp rated parts.
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